I loved the show and watched it all I one day but I have lots of complains about the characters.
Billie was being selfish by not letting cooper go. It was obvious that she still in love with brad but she just didn’t want to leave that life that she had with her kids and her husband. In the end she chose to be with both because she wanted the “perfect life” with her husband but also wanted the amazing and incredible sex with brad. She wanted to feel the rush again and the chemistry that Cooper couldn’t Give her.
Cooper kept trying to be Brad and fulfill the fantasies that Billie had about brad but in the end that just made their relationship worse. Cooper was all talk about how Billie could be cheating on him but Cooper was very close to cheating on Billie multiple times with francesa and not to mention he let Trina do things to him right in don’t of Billie at a sex party and also tried to have sex with Billie at that party in front of everyone there and wouldn’t stop even after Billie told him she didn’t want to do it there because she felt uncomfortable. He was making Billie miserable and neither of them realized it, He was only fulfilling his needs and didn’t let Billie finish on multiple occasions even when Billie told him to slow down.
Brad was extremely hot and probably my favorite character but there are somethings he did to Billie which made me sad and angry at him. When he got mad at his stepdad and said all those things to Billie I was really angry but I also understood him, Brad is the type of person that they had troubles growing up and when they get mad they tend to take their anger out on the people they love by hurting them emotionally. After Billie had the miscarriage Brad wasn’t the same with her, he should have been by her side comforting her and tryin to take away someone her pain. But instead he threw her out of his place. But Brad never stopped loving Billie and even gave her up so that she could be happy but even he knew that she would never be completely happy without him.
I honestly think Brad and Billie should end up together. brad has hurt Billie so many times but I think this time he is actually ready to start a life with her. Brad is the only person who can give Billie what she wants. Cooper should be with Francesa she is the only one who understands what he needs. Maybe Cooper and Billie could co-parent if they had a divorce or maybe they could both have an affair and establish a relationship where they could be friends at home and a married couple in the eyes of everyone else.
P.S: DO NOT condone cheating on either side of Cooper and Billies relationship.