Anyone who goes out 12 Friday and is blotto all through the weekend is definitely not normal, by anybody's standards. You are certainly not present for your wife and child and don't seem to have any family life on the weekend. Don't tell me your wife is happy with this arrangement, I certainly wouldn't be and my husband would have gone berserk about it before now.
You just have to make up your mind what sort of life you want. I decided after years of horror - it gets worse - I love my sobriety. I love my family. I love the peace instead of the chaos alcoholism brings. Good luck