Yeah, I forgot to add anything helpful to my post, but seriously, just worry about your son and be a good dad. Plenty of kids grow up these days in a single-parent household and turn out okay. Maybe some day you'll find a mother figure who can be more available, or maybe some day his mom will meet someone who's not a shithead and a bad influence and you guys can work out a joint-custody. No matter what, you'll always have each other and that's what really matters, right?
airing your laundry in public on these forums tends to bring all sorts of uncomfortable reactions, doesn't it? if you don't like it, i recommend you refrain from doing so. it's something we've all learned at some point in time or another.
^^^Words to post by^^^ To ALeathalDose- the real tragedy is that your son isn't being given a stable, two parent environment, whatever the circumstances. I'm with KC in that as far as adults, there are no innocent parties. I say that from personal experiences and the many, many things I could whine endlessly about are all in one way or another created by me. Your son's happiness is at stake and your apparent willingness to act on his behalf is commendable... I'm certain you realize that attacking the mom doesn't help that end of the game... if her life is the train wreck that you describe, those charged with the responsibility of making custody decisions will see that with minimal help from you. I wish the best for the sake of your son.