He is not forcing her; that's happening because she wants. She's free to leave him and go, if she considers she's more than that and she's self-sufficient enough to live on her own, without his help. That spit means: "you are just an inferior piece of fle
You catch your bully fucking your busty gf. You can't stop them. So you accept it like a good boy and let them continue. They are kind enough to let you watch.