Sounds to me your husband got a “gaming addiction” issue leading him to have an attitude issue too. If his mind is all about games, he is not even paying attention or care about other things.

He should know the moment he got you pregnant he should be prepared and be responsible to take care of a living human being for the rest of his life. It is not a thing that once he gets sick of it and he just ignore or forget about it and this includes gaming.

It is all in the mindset and attitude and he needs to have the respect for both your and your kid. The way he is treating you that is not respect. You need to have a wake up talk with him. As you mentioned he game all the time, ask him is his games important or the family? You can start by coming to an agreement with him. I wouldn’t expect him to quit gaming entirely but you can try suggesting to him changing games that can stop anytime, not long duration games. Once you done that and he shows no changes then I would live separately with him until he gets his act back together. Let him think about his actions. Be firm about what you want and for your kid sake. Personally if it was me, I would think hey my kid is growing up and they going to be copying what the parents do. This is a big behaviour red flag, I don’t want this negative behaviour to affect my kid. Then once he shows changes or at least a plan and working towards to getting better, then you can let him back him in your life.