Help!

So my SO and I have been together for a year now. We’ve moved 1,000 miles from our home town 2 months ago. He moved his mother and little brother in. Since then he has changed. And this is mine and his house. When I tell him how his mother is treating me he blows it off like its just me, and I feel completely uncomfortable in my own house. He doesn’t touch me he will barely talk to me we literally have sex once a month now. I just feel like I’m completely losing connection with him. I try holding conversations with him and joke around and he just kinda laughs and walks away or just Blankly ignores me. I have to be the one to come to him first to have any type of affection. Not to mention, he will go outside without me or to the bathroom and shut the door (something he has never done before) to use his phone.What do you all think? Should I break up with him and get back to my home town or work through it and use different ways to connect?