What the hell?!?

Susan

So recently I posted about my ex and I and some other stuff has come to light. He had text me this past Monday even though we live together and said he was better off single. I ended up leaving as he requested and went to a hotel with my 2 kids. Now I'm 12 weeks pregnant I found out he had been sleeping with a coworker of ours for about 3 weeks prior... now ive found somewhere to stay since we all work together I've decided to leave as it's too much stress on me and the baby. I just am not sure how to handle all this anymore. What do I do to help the anger and the pain pass? I've felt as if this has crushed me. He cant even look me in the face let alone talk to me.