My Husband kissed my friend

Hey y’all sooo one night I was at my house drinking with my family and my one of my friends and I had left for a bit to get some food. Well it turns out that while I was gone my husband kissed my friend. She ended up telling me but he says he doesn’t remember because he was drunk (which he was). But i’m having a hard time getting over it.. i’m trying to convince myself that it was nothing serious but he had some sketchy texts about her between him & my cousin (who had sex with my friend) saying that he wanted to see her nudes. I dont know what to do we literally just got married in June & been together for almost 5 years. Anything helps at this point because I dont even know what i’m asking