|“||I'm gonna get you out of here, I swear to God. I love you, Polly!||”|
|— Betty to Polly[src]|
The sister relationship between Betty and Polly Cooper is close. Who are the daughters of Hal and Alice Cooper, and are very close. After being separated by their parents for a long time, the two finally reunited after Betty and Jughead found out where Polly had been forcibly sent by her parents, which is where Betty discovered that her sister was pregnant with Jason's child.
During their childhood, Betty and Polly shared a close bond with one another that remained as they grew up. However, they were separated when, according to their parents, Polly suffered a breakdown due to the collapse of her relationship with Jason Blossom and was subsequently sent to a group home. Their parent then refused to tell Betty where her sister was, that she was too sick for visitors, and told Polly that Betty didn't want to see her.
Leaving for the Farm
At the Cooper house, Polly revealed first to Betty, then to their parents that she was leaving Riverdale to live at the Farm. She had already called to make sure they still had room for her. What Farm, their mother asked. Polly replied that it was the very same farm that she and Jason were going to run off to before he was killed. Before any rash decisions were made, Hal suggested that they all sit down and talk about Polly's sudden urge to leave. Polly explained that her need to evacuate stemmed from the Black Hood, who was targeting sinners. Betty did not believe that Polly is a sinner, but Polly countered that she was a mother that was carrying her cousin's babies, and decided that leaving Riverdale was the best way to avoid being targeted. Alice strongly objected to this, saying that Polly would leave Riverdale "Over my dead body" Polly replied "It might be over your dead body, but it certainly won't be over mine or my babies" She then left the room, and Hal followed her to try and talk her down.
The following night, with her bags packed and a cab just outside the house, Polly said goodbye to Betty. Apparently, Betty was the only member of the family she was extending this courtesy to as neither of their parents knew that she was leaving. Betty questioned if this was truly how Polly wanted to leave things with their parents, leaving for the Farm without saying goodbye. Betty insisted that their mother was sorry. She's always sorry, Polly explained. Right up until she does the next thing that sets everyone off. She insisted that she would be fine, before hugging her and promising to call once she is settled.
Polly briefly appeared in Betty's anxiety induced nightmare. She entered Betty's bedroom to wake her up from her sleep and tell her that Santa Claus was down stairs. Polly then joined their parents by the fireplace as Betty came down the steps. Moments later, Polly was dead, as were her mother and father. They had been murdered by the Black Hood who had disguised himself as Santa.
Betty came home from school to find that Polly had returned. Though she was only back to gather her belongings. Much to Betty's surprise, Polly had given birth to the twins. The brief moment of excitement turned into disappointment as Betty realized that their mother would be crushed upon learning that Polly gave birth without telling them. At the very least, Betty wanted to alert their mother of Polly's return, but Polly warned her against such action. The leaders of the Farm, which Betty viewed as a cult, thought it best if Polly severed all ties to their family. Polly insisted that the Farm wasn't a cult. Furthermore, on the Farm, the twins, who were healthy and who Polly named Juniper and Dagwood, weren't subjected to any stigma. While their parents may have hurt Polly, Betty urged her to reconsider her decision to leave as her actions could be perceived as cruel, selfish and vindictive. Polly apologized as she prepared to exit the room with a box of her belongings. As she was nearing the doorway, Betty grabbed the nightlight sitting at the top of the box, claiming that it was hers, and that Polly would probably have no use for it anyways since the Farm likely doesn't have electricity.
Betty came home to find that Polly had returned with her twin babies,Juniper and Dagwood. Betty and Polly shared a hug, during which time Polly expressed her surprise when meeting Chic. Still cautious of Chic given his recent behavior, Betty grabbed Dagwood from him though she made sure not to raise any suspicion. Polly then asked about their father, as she was wondering if they would be attending Clifford Blossom's will reading together.
Later that day, Betty attended Clifford's will-reading with Polly and their father. Also in attendance was Cheryl, Toni, Penelope and Nana Rose. In the will, Clifford stated that ownership of Thistlehouse will remain with Nana Rose. To Penelope, Clifford left Thornhill, though that had since burned down. Any and all remaining assets of Clifford's fortune was to be divided in half. The first half would be distributed equally to anyone in Riverdale who could prove that they were of Blossom blood. Alice then arrived at the will reading to confront Hal. She had realized that he only wanted a divorce so that he could cheat her out of Clifford's will. After her mother was escorted from the premises, the will reading continued. The second half of Clifford's assets were to go to his true heirs, Cheryl and the now deceased Jason. As Cheryl gave a speech, Clifford's twin brother, Claudius interrupted the will reading.
That night, Betty, Polly and Chic discussed with their mother getting the blood test done so that they could inherit the fortune they were promised through Clifford's will. Oddly enough, Chic refused to get his blood tested, claiming that he didn't know any of the Blossoms well enough to trust them, along with being triggered by needles and not wanting their blood money.
After sending Chic's DNA off to be tested at the Blossoms' lab, Betty went shopping with Polly with the money they inherited from Clifford Blossom's will. On their way home, Polly told Betty that Chic was creepy. Betty agreed. It was part of the reason why she submitted a sample of his blood to the Blossoms' lab. Betty began to think that their father was right about Chic being dangerous. She also began to theorize that maybe Chic wasn't even their brother. And if he's not, she would be relieved despite their mother's heartbreak. Betty and Polly returned home to find that Chic had taken Juniper and Dagwood for a walk along Sweetwater River. Just as Betty and Polly began to panic, Chic walked through the front door with the twins unharmed.
|“||At the home, the sisters said each of us had a guardian angel. And you're mine, Betty.||”|
|— Polly to Betty as they wait at Pop's for the Blossoms.[src]|
- Polly: "Betty, I've decided... I want you to be the baby's Godmother."
- Betty: "Really? Me?"
- Polly: "If anything would ever happen to me, the only person I'd trust to care of my baby is you."
- ―Polly asks Betty to be her child's Godmother[src]
- Betty: "Oh, my God! What happened to the twins?"
- Polly: "I had them, Betty."
- Betty: "You did? You didn't call us? Mom'll be crushed that she wasn't there. We have to call her."
- Polly: "No, Betty, we don't. The leaders of the Farm think that it's best if I sever all ties."
- Betty: "The "leaders of the Farm"... You mean the cult that you joined?"
- Polly: "It's not a cult. And at least on the Farm, there's no stigma on my babies. You can tell Mom and Dad if you want."
- Betty: "Tell them what? I don't know anything. Are they healthy? Do they have names?"
- Polly: "Juniper and Dagwood."
- Betty: "Oh, my God. Polly, please, okay? Mom and Dad hurt you, yes. But what you're doing right now is cruel and selfish and vindictive."
- Polly: "I'm really sorry, Betty, but I gotta go."
- ―Polly and Betty argue[src]
Season 1 Screencaps
Season 2 Screencaps
- ↑ Williams, Tessa Leigh & Zwart, Nicholas (writers) & Adelson, Steve A. (director) (March 2, 2017). "Chapter Six: Faster, Pussycats! Kill! Kill!". Riverdale. Season 1. Episode 6. The CW.
- ↑ Allen, Aaron (writer) & Anders, Allison (director) (March 9, 2017). "Chapter Seven: In a Lonely Place". Riverdale. Season 1. Episode 7. The CW.
- ↑ Cohen, Julia (writer) & Katzenberg, David (director) (March 30, 2017). "Chapter Eight: The Outsiders". Riverdale. Season 1. Episode 8. The CW.
- ↑ Maxwell, Ross (writer) & Sullivan, Kevin (director) (October 25, 2017). "Chapter Sixteen: The Watcher in the Woods". Riverdale. Season 2. Episode 3. The CW.
- ↑ Boucher, Shepard (writer) & Seidenglanz, Rob (director) (December 13, 2017). "Chapter Twenty-Two: Silent Night, Deadly Night". Riverdale. Season 2. Episode 9. The CW.
- ↑ Lundin, Britta & Paterson, Brian E. (writers) & Hunter, Tim (director) (January 17, 2018). "Chapter Twenty-Three: The Blackboard Jungle". Riverdale. Season 2. Episode 10. The CW.
- ↑ Allen, Aaron (writer) & Piznarski, Mark (director) (March 14, 2018). "Chapter Twenty-Eight: There Will Be Blood". Riverdale. Season 2. Episode 15. The CW.