Drama, Drama, and More Drama

So, a lot of drama in my life recently. I started going out with this guy I've known for 8+ years, and we had sex. I really felt a spark and fell in love, but he was stupid and set my nude as his contact photo for me. His mom saw and told him he couldn't talk to me anymore. ...But of course, being the dummy he is he still did. I tried to pretend I was over him, and he almost immediately goes and gets with another girl. He hurt me a lot, and looking back now I don't even know why. We said a lot of mean shit to each other and fought a lot because we were still in love, and I couldn't get how he could say he was in love with me but be with another girl. He's just so confusing and complicated. So after fighting a lot, I finally try to move on, and weirdly me and his "brother" (a really really close friend) start talking. I didn't mean for it to be that way but it just happened. This guy is really cool, and he comes over and we chill. We end up kissing and holding hands, and I touched his dick a little bit. I'm so happy, but the next day my ex calls and texts me like, "I love you, I miss you, I want you to take me back." And I'm a dummy, so I listen to him. Everyone's yelling at me not to, but I don't know what to do. I love him so much and he acts like he loves me. He agreed to start over and regain my trust, and work it up from the start as much as we can, but idk. I really love him but his brother is so nice, and I'm not sure what either of them wants from me. I don't know what to do... I just want to chill right now and not have to make a choice.