Help...

I feel my relationship failing on my end mostly. We have a 10 month old daughter together, been together for almost 4 years, but... lately he hasn't been talking to me about hardly anything, is always super angry, or has an attitude, never really communicates with me anymore, no longer has sex with me, (when I even try he just says no and gives me some excuse) constantly turns and faces the wall every night. Dosen't bother to cuddle with me. Nothing. He plays video games, smokes weed every night, and hardly has anything to do with me anymore. Is it a good idea to just end it here and save some hurt and time? Or what do I do? I literally feel like he looks at me in disgust, like he would rather me be gone and just never have to deal with me again. I don't know what to do😭😭

I feel he would be happier without me and that hurts..😭😔

Advice?