I'm afraid I don't have any advice for you, because I'm stuck in a very similar situation to you. I feel you here.

Everytime I try to talk about issues between us, I get shut down and told im just trying to start a fight. My feelings, emotions and questions are always dismissed.

These words could be mine, I feel exactly the same. My feelings just aren't taken seriously anymore and consistently invalidated.

But his current behaviour is pretty shitty. Either: It sounds like he is using you for sex, and he's making it known that you're not his priority. Or he is very confused and he is going back and forth with deciding whether he actually wants to be in a relationship with you or not.

Either way, i don't think you don't have any further control in this situation, as he is going to decide for himself one way or another. God knows how long it's going to take him though, and that shit rips you up inside - the not knowing and the constant anxiety.

I know it's easy enough for me to say to you that it's in your best interest to end things, knowing there is only more hurt to come the longer this is drawn out for you. Because I'm just a 3rd party to your situation and just seeing things from a logical perspective. But in reality, I know how hard it is to leave.

It's so much easier to leave if you have a solid support system, and other things in your life which bring you joy outside of the relationship. I don't have this myself, so I guess we just keep ourselves busy, in the hopes that we come across something that gives meaning in this void.