For whatever reason, it sounds as if you hooked yourself up with someone who intends to cause a wake of damage everywhere he goes. He has created 2 offspring by different mothers and I'll bet my next paycheck that he either complains and fights paying child support or simply does whatever he can to get out of it - for instance, makes certain that he's legally "unemployed" most of the time.
This type of person doesn't have the capacity to "love" in any sense of the word. They take. They demand. They use. They discard. And, all the while, they perpetrate "crazymaking" upon their victims and do not have even a shred of remorse for the damages that they inflict - it's ALWAYS someone else's fault for their bad choices, decisions, and behaviors. See my CureZone blog "Floating the Abyss" for a brief discussion on crazymaking.
Also, I would strongly urge you to visit the following website; http://www.lovefraud.com.
You may discover what is ailing this very unhealthy relationship and choose to save your Self before someone crosses the proverbial line.