So me and my bf were out at two separate places for Halloween I heard from a freinds that he was telling someone that he thinks I was cheating on him when I was out which I definitely did not he has no reason to believe I did cheat and his story of what was said is way different to the girl that he told as she told me, should I be worried I can’t understand why he would think this of me when he always says he trusts me???

Maybe should talk to him about what you heard before you draw any conclusions.

I have tried to talk it out without trying to start an argument and he doesn’t seemed that bothered about it and can’t see why I’m upset over it but seemed very bothered when he was saying it

Bothered how? Not bothered about what’s being said about him? I think that’s fine. If he tells you that he trusts you then you only have the option to trust him on his word. I wouldn’t start doubting him just because of what “a friend” said.

Do you have any reason to believe what this girl said over what he said?

He eventually admitted to most of it being true

If he doesn’t trust you to stay loyal then there is no point for you to stay with him. You shouldn’t have to prove yourself to him when you’ve done nothing wrong.