Should I leave my bf? I heard he had sex with a man in his past way before me even though he denies it. I kinda believe its true but his test was clean so idk. I just love him?

I have to say, one, this is something you've "heard" and its something he denies. Two, if it is true, so what?! This is something that happened long before he met you, everyone has a history. I kinda feel this should not be an issue in your relationship, you either except him for who he is, or you don't!