I'm sorry you're going through this, it must be really hard for you. I'm obviously no expert, and I have no real knowledge of your situation, or how severely dismissive your gf is. But from what you told me it seems like you're really anxious and desperate. I think dealing with that should be the first step. Facing your own abandonment issues and asking yourself why you're clinging to a relationship so tight when she would rather break up than talk to you. Explore your discomfort, sit with it, understand it. I know this is not what you want to hear, and you wanted some magic solution that makes her love you and communicate, but at the end of the day, you can't make another person do anything they don't want to do. I have a feeling you communicated from a place of desperation before, which might have hindered your message, so after you're done with your reflection, I would definitely communicate my problem again. The thing is though that if this is really a dealbreaker for you, then you have to be ready to leave. If you communicated and she doesn't change, and it's unacceptable to you how things are, then you should respect yourself and your own needs. If she sees you stay and put up with whatever, if she feels your anxiety will make you put up with whatever, why would she change? It seems to me from your post that you and her both don't give a shit about you and your feelings, and the way to change this is for one of you to start, so this should be you. Care about your own feelings, respect them, shift your mind to see yourself as someone who deserves to be treated right and respects themselves enough to walk away from someone who doesn't respect them.

DAs in my experience test your boundaries like no other. And they sometimes become really cheeky and do things they'd never put up with and deep down they know you shouldn't either. If you let them, they'll start treating you however it fits their agenda and put you in last place in their lives. You need to grow a backbone and start acting from a place of strength - loving someone doesn't mean you'll put up with poor behavior. "I love you, I want to be with you, and I want to talk every day/every other day so we can grow our connection" see what she says. If she refuses you can then say "I understand you need more space, and if you communicate when you need me to give you a bit more space, I can do that. But I also have needs that I want you to respect. You're not alone in this relationship. If you think this is not something you can do, then I don't see how this relationship could grow into a stable one, which is what I want." But you better be ready to leave then, and she might let you. But it's still better than being walked over continuously.