To make a long situation short: My younger sister got pregnant by this loser. Turns out their kid has Cerable Paulsy (sp). She is 18 and just graduated, and the kid is about 4 months old. I am also 18 and just graduated. Turns out the other night he cheats on her with another girl. My damn neighbor and very good friend (and a lot of other people I know) saw him do it. He doesn't support the child at all and blows money on his car. What should I do? They tell me not to confront him because I will probably lose it. I think I am being calm about it. Any suggestions?