I’m obsessed. She knows it. Always hurting

So let’s start at the beginning. I ended a 7 year relationship in January because I caught my s/o cheating on me. It broke her but I just don’t have a tolerance for that level of dishonesty.

Fast forward to October, I meet this girl who I instantly fall for. The problem is these feelings have only gotten stronger, if not obsessive. We had sex pretty early on into the relationship, spend a lot of time together, talk on the phone a lot….but from my perspective it’s never enough. I am always thinking about her. When I leave her house and know I won’t see her for a few days I get depressed to the point where I don’t eat. Granted I don’t let her know it’s that severe she knows I’m obsessed with her. She is very nice and doesn’t take advantage of that either (otherwise I probably wouldn’t have the feelings I do). I’m also trying to rush us moving in together. I feel like I’ve lost my mind, but these feelings are so damn intense. When I’m with her I want to just off myself in her arms because I wouldn’t have to be without her anymore. What the hell is going on and what do I do?