Was it wrong for me to leave my wife with our 2 month old child?

Ideally, husband and wife should be able to cooperate on taking care of a baby. ie BOTH husband and wife. Yeah you both should have done stuff differently, but it takes two people to make a marriage work. I had a really hard time in my marriage and did stuff I'm not proud of, but then again it's like for example if someone's holding you underwater you're sure going to do whatever it takes to come up for air. Sorry you had it hard, trying to commit 100% was brave, sad but true since a lot of guys won't.