If your dad, half of your genes, just left you fro 3 1/2 years; what would you do.He was an achoholic, druggie, put himself before me. And then eventually just stopped seeing me. This all happened over 3 1/2 years ago.Recently he contacted my mom, and he wants to talk to me and my brother. But I don't know if I want to talk to him. My brother decided to talk to him, but I have yet to make a...