how would u react?

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My baby woke up crying at 3am and I was dealing with him, then daddy came up to bed and I asked him to take over so I could step outside to have a ciggie. He said yes and so I did. Baby started crying - and started crying hard. Daddy was just sitting there on the bed with baby next to him, not picking him up or anything. He threw a remote at the sliding door to get my attention and proceeded to give me shit for not consoling our son. I told him to pick him up and that I would be right there, finished my cig and went in. By that time my baby is a crying mess just sitting there next to his dad, and the dad is calling me ridiculous for having a cig at 3am. I told him it was ridiculous he wouldn't console our son and that all I asked for was 5 min, then he told me to do just "do my job" and take care of our son, then told me to "take your kid outta this room". Then he locked me out of our room and ignored me. I slept in the guest bed in the baby room (I sleep in the guest bed quite a bit because of nursing my baby and it keeps my guy awake. 
This isn't the 1st time he's locked me out of our room, it happens like once every few weeks. I actually just moved my stuff back into our room lol. Looks like I'll be moving completely back into our babies room - I guess? I don't know. I'm stuck in a world of commotion and don't know how to stop this. I love my husband, when he's not mad he's the best thing in the world. Treats me so good and is so kind, loving and generous. As soon as he gets angry - he flips. Gets verbally abusive, there's a lot of name calling from him. He turns into someone I do not know. Any help is really appreciated...