Bathroom Locking Boundary Dispute

AITA for leaving my boyfriend's place in the middle of the night after he locked the bathroom?

So this happened a few nights ago and l'm honestly still weirded out. l (28F) was staying

over at my boyfriend's (31M) place we've been dating for about 6 months., around 11PM,

I got up to use the bathroom. I tried the handle and it was locked. I waited,

thinking maybe he was in there, but nope, he was just sitting on the couch.

I asked, why is the bathroom locked and he says, I don't let people use my bathroom

after 10PM. it's a boundary I have. I told him I needed to pee and he just

goes, you'll have to wait until morning. at that point, I didn't know what