hell:((

My boyfriend and I haven't been going out for long, but all of last year we were on and off and he's the only the boy I've ever wanted to be with and loved, he was an arsehole and hurt me a lot but changed for me this year, these girls have now piped up and said he's asked them nudes, I don't know what to believe and I told him it was over because he's lied about the situation, I don't want it to be over, maybe I've over reacted? But my heads all over the place and I don't want him or myself to be with anyone else, and he has genuinely changed, everyone sees it and it's a massive difference