Just needing to vent

I've been with my partner for six years, and we have four kids. I love him, but half of me no longer wants to be with him. His anger is a problem, and he doesn't show any emotions when it comes to how I feel. He always points fingers at me, but it's not my fault. I used to think I was the problem and blame myself for his reactions, but I don't believe it's him. He blames me for not being able to have female friends, but that's not the case; it's when he lies to me, and when I was pregnant, he was texting a girl, and I asked him about it, and he told me it was none of my business and just an old friend. However, he finally got caught, and he deleted everything from him and her from last year's October to July, and photos were exchanged, and it's hard to overcome that, and the whole time he tried to make me look stupid and blame me for not being able to text her anymore, and then he apologized after I left and promise he wouldn’t do it again. I'm called selfish by him, and my reaction is to provoke him, given how he behaves. Although I still love him, I'm almost mentally exhausted. He's leaving for the Dominican Republic tomorrow until Monday. Starting over is frustrating.