Can't comment much as ultimately you know your husband best and can't based on this post for us to decide whether should you divorce. Going out drinking and playing mahjong doesn't really mean he is a bad father or husband either but of cos there must be a balance and you two require more communication to work this out. I assume your baby is still young judging the period you are married, men are usually not hands on with babies so don't expect the instant change.
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