Last night, my boyfriend and I (we've been together for 10 months) got into a fight on our drive home. We grabbed a few drinks and some apps (neither of us were drunk btw and obviously we wouldn't drive if were planning on getting drunk.) When we parked, he told me to give him space and go into the apartment, which I did. I guess he came back up later. I fell asleep on the couch, woke up and showered, then crawled into bed.

When I got in, I thought he said "I hate you." to me. He talks frequently in his sleep but I also thought he was awake. It turns out he has no recollection of saying that and swears up and down it didn't happen. I'll chalk it up to a misunderstanding or me not hearing him correctly. I apparently woke him him up which pissed him off a lot and we got into this huge fight. He claims I was hostile and disrespectful for waking him up (which I did unknowingly) and it ended with him throwing my pillow across the room and telling me to "get the fuck out" of our room.

Granted, I have really bad anxiety (which he knows about and am currently trying fix with different medications/doses etc.). I asked him if he still loved me and he told me he didn't. I then asked if this was something he was going to break up with me over, which he responded with "probably, yeah." I shouldn't have pushed it but I started crying and he started yelling at me for wanting reassurance and not letting him sleep and then he hit the pillow I was laying on and threw it across the room. I ended leaving the bedroom and sleeping on the couch.

Today I apologized for not letting him sleep and telling him I was sorry and the conversation could've waited until the morning. Since then, he's retracted his statement and says that he does love me but he shouted it at me and refuses to talk to me. Every time I try to talk or bring up last night, he is just short and says one word answers, or will straight up ignore me. I've given him space all day, but this is something that needs to be resolved. How do I get through to him?

TL;DR: My boyfriend shuts down when we have arguments and I don't know how to get through to him.