I'm so upset

I went to the doctor this morning because I was really sore and had really bad burning with urination. My doctor did an exam and said he was almost positive I was going to test positive for an std. I called my husband and asked him why my doctor thinks I have an std. He then admitted he had been cheating on me. He wont tell me who it was and he said we could either move on and never talk about it again or get divorced. Then before I could get back from the doctor he moved out all of his stuff, started texting me a d calling me a whore, and then shut his phone off. What the heck! How did I deserve any of this today?