My relationship is falling to pieces 💔

NEVER THOUGHT ID BE EVEN WRITING THIS !!

My boyfriend and I have been living/dating since Jan 2018..

For a couple days now he’s been accusing me of things I haven’t done and idk why...

I checked his phone and NOTHING !!!

He’s been sleeping on the couch for hours and then comes to bed with me and it doesn’t feel the same any more honestly...

I think I want to give up !!!

What should I do ?