(SORRY IF IT'S LONG PLEASE HELP) So about 6 months ago, literally like 3 weeks after we got together, me and my boyfriend took a break because we'd had a misunderstanding. Anyway, he had a party that night when we were on a break and after he told me that a girl tried to kiss him and she kissed the corner of his mouth but he pulled away so she couldn't kiss him. Recently I found out that my boyfriend told his best friend (a girl) on that night that she made out with him and she was a good kisser and she'd felt his dick and asked him to have sex with him; and that it was very hard for him to turn her down. I confronted him about it and he said he was drunk and said it because he wanted to seem cool for being able to resist her, and his friend who is also my friend who was there said he didn't kiss her; even though she did try. What should I believe?