I'm so depressed

So today my boyfriend of 4 years the guy I lost my virginity to left me. I tried to give him all my love and I tried to make him happy for so long. I went over to his house today and we had sex I guess his mom was in the other room and he didn't know and she heard. So after that he called me and said that his mom knew. And I tried talking to him but he couldn't even look at me he keep looking at his phone. I feel so broken I really don't think I can continue I'm having thoughts of taking my own life away. I really don't see the light.