Easier said than done, don't even give him a second thought. I've been through this... TWICE. Long story short, dote on your baby and don't even worry about how that schmuck is living his life! HE'S the one missing out on your incredible baby boy. Make sure you file for child support. Remain cordial, but file. Always keep the door open for visitation, but remember, YOU are the parent. You are mom AND dad. I applaud your strength for going at it alone... again, I've been there twice. It's tough, but the pay off is huge :) I feel kind of sorry for guys that do this, but honestly, they dig their own graves. They miss out on the greatest gift ever... but it's not our faults! Don't miss out on a second of your little man... they get so big, so fast. Just concentrate on you and the baby... and remember, YOU create your own happiness. Being a mom is such a huge job, you don't have the extra time or energy to try to figure out why this guy's such a jerk ;)