So I'm in a bit of a pickle.. When I was young my birth father was tricked into letting my dad adopt me. My mom says it was for my best and to protect me. I found out when I was 13 that my dad wasn't my bio dad and it broke my heart. But now I'm 22 and I'm an exercise science major and we always get asked about our health history but I know nothing about my bio fathers side. So I did some digging in my baby book and found him and Facebook messages him. He then told me I had 4 other siblings. They are all great and loving but barely talk to my bio father.. They all have abandonment issues with him. We all also have different mothers.. My bio father was in a band so I guess he lives the stereo type.. Well anyways, he told me that he was never abusive and that he wanted everything to do with me.. I just don't know who to believe him or my mom.. My older brother says he's changed a little bit but not a ton. Should I give him a chance. I've always wanted to know him. But idk how to feel. What if he has changed or what if he's still a bad person. The curiosity is there and I need advice.