Should they be friends?

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Okay i have these two friends we will call them Bill and Steve. Well Bill went out with this girl and then this girl had broken up with him, because he had treated her badly and like she was his property. Well after that Steve had asked out Bills ex gf and they started going out, well Bill told Steve that if he didnt break up with her then he would no longer be friends with him. So like Steve had a fake break up with the ex in front of Bill so he would be satisfied and happy. A few days later the ex went up to Bill and asked if he had hated her and he said a little bit. So like would you call Bill a good friend for wanting Steve and the ex's relationship to end or would he be a bad friend or does he want his ex back? This is so confusing and they are really good friends to me, so help me understand whats going on and if Bill sounds like a good friend.