Wow man. You're a real champ. My dad did the same thing to my mom and brothers right when I was ready to go off to college. Messed me up horribly for about a year before I had to learn to man up and work for things. I got heavily into drugs and degenerate behaviour, but I finally got clean. That was "immature" of me because I was 18 and stupid.
You are and were a grown man and you ditched the responsibility of being a part of a family. If daddy touched you when you were four or he just flat out didn't like you, I'm extremely sorry, but you f'd up. You think your son not being able to assert too much of an alpha male personality has a source? Most dudes raised by single mothers tend to be more effeminate than those with a male role model in their lives. My little brothers both had their problems with girls and they won't blame our father for just calling quits, but Jesus man. This is on you. I'm sorry that your children you didn't care about are "awkward" and don't reel in all the chicks with their 6" inseem shorts like you do bro.
Go take some performance enhancers and have a heart attack in your local 10k.
Someone with daddy issues.