<human>: Just the title. We've been together 3 years and had a baby two months ago. Since he was born, he's been nothing but cold and verbally abusive towards me. It's not even a romantic relationship anymore. We just live together. He's a good father but a terrible partner.

We can't just break up which is what I want to do. He doesn't live here. He moved here when I got pregnant. I'm from FL, he's from Washington state. I don't know what happened. As soon as I gave birth, a switch flipped and he put all of his attention to our son. That's great. It is. However, that doesn't mean I need to be in a relationship with someone who puts me down and pays no attention to me. It started with breast feeding. I don't produce enough milk so he's getting 80% formula and 20% breast milk. My SO has been horrid to me since. He talks how I'm a worthless mother because I can't even feed our child on my milk.

I just want him to go away. I'm sick of his comments. I don't know what to do. We are renting a house from my parents. He's now insisting that we all live in Washington state together. I definitely don't want to. Sure, I could kick him out but then what? I have a crappy work at home job that makes crap and he would fight for full custody. I can't lose my son.

I don't know where to start.

Can you summarize the given text in a few sentences?
<bot>: I want my SO to move out and just go away but we have a kid and he's from another state. Advice?