I was drunk and cheated on my boyfriend but I didn’t want to I told the guy no

So, I have guy friends and a lot of them think I’m hot. This one night I went and hung out with one I told my boyfriend where I was going who I was hanging out with and everything. So we went to a beer tent and were catching up then we went back to his apartment hung out and caught up and hung out on his boat. During this time he was being an ass about my relationship saying how my boyfriend doesn’t seem to care about me which my boyfriend does care a lot! But one guy said does he really you just seem too good for him like he doesn’t care about you. I though about when we had a rough patch when we had a mess in our relationship. I forgave him kinda of cause I hold a gurg a little about it cause it hurt me a lot and I never got the full story. But after talking and drink few drinks I was drunk and he knew I was so I changed back into my clothes after swimming he started to grab me I said stop I have a boyfriend and you know I do and I can’t do that! He didn’t stop the idk what happened next thing I knew we were on his bed and sleeping together after I cried cause I can’t believe what happened. We sat and talked after I said I can’t believe that happened he said we take this to our grave I just nodded cause I didn’t know what to do cause I LOVE MY BOYFRIEND A LOT!!! After I left the guys house I called my boyfriend full of guilt and wanting to cry cause of what happens I don’t what to do to tell or not cause I’m scared he leave me or beat up the other guy for doing what he did. I just feel like it is my fault, help I don’t know what to do?!?

So it was not consensual? If it wasn't then that is absolutely not your fault and you should feel no shame but need to tell your boyfriend and never see that other guy again. If it was consensual then you just need to take a deep breath and come clean to your boyfriend. No one deserves to be cheated on but especially no one deserves to be lied to about it either.