Would you take your ex back even when environment isn't supporting?

My family and friends don't support my ex because he behaved very bad. He didn't beat me but didn't show up on a appointment with the parents, threw water at me during a fight, doesn't know how to appreciate things.

. He says he changed and that he want to do it right this time. We broke up before. we Haven't been in contact since 30 nov until today. do you think he really loves me or just wanna have sex? how do guys feel about this situation?