😩😩 got caught.

My bf and I are both 18. And he snuck me in his room because we were fighting and wanted to fix it. And after we ended up having sex and his mom knocked on the door and came in. I hid in the closet andshe  opened it and there I was, butt naked. She told me she now hated me and I wasnt welcome over ever again.. she even said that my boyfriend and I cant see each other anymore.
I realize yes, were 18 but his mom is psycho. And now I dont know what to do. 
I understand completely where she's coming from and I realize it wasnt right. But I've worked hard for her to like me and now I dont get to see him & she hates me & I just feel like shit