My best friend is 27 and her boyfriend and baby's dad is 43 and I'm 17, a few months ago I slept with her boyfriend and we were all over each other but now he avoids me and doesn't want to even look at me. But for the past few weeks he has been really hateful toward her and she is 6 months pregnant and he throws tantrums and acts like a little kid. Do you think it's because of me or what? She told me the last time he was cheating on her he would act just like he is now? I can't tell her that we slept together because I just moved in with them:confused::confused::confused: