all that really matters should be what you think... its not ur friends who wuld be dating ur ex. you have to be happy and if u are going to go back with him u have to be able to trust that he wont dump u. but thats completely up to u. you cant control men hahaa. however if ur friends see something wrong with him then maybe u should think twice about that because my close friends said that they didnt like a certain something about my boyfriend at the time and it turns out that they were right and i ended up breaking up with him