I've been here for about a month and a half now. My H left early Nov. I was 6 weeks pregnant, he walked out on me, ILYBNILWY, moved in with OW the same day he left me. He had only known her 3 weeks. I'm not a great one with the advice because I have a hard time most of the time DB'ing. However, I can tell you this: it usually takes a lot longer than you hope it is going to take. I thought the A would be over by now. But, it's not. It doesn't even have a hint of being over. You are going to go through quite a bit. One thing I can tell you is not to get discouraged. It may feel like you are never going to feel better. But, there are days here and there for me, now, where I feel okay. Those days still tend to scare me a bit, but I'm getting better at trying to make more of those days for myself. Read other threads, read the threads in piecing and in MLC, there are good things in there, too. And, some really encouraging ones.
Good luck with your therapist. Mine gave me some techniques on how to deal with the obsessing and control issues. Make sure you tell them that you want homework. That really helped me and it also helped to write in a journal.
Good luck. I'll check in on you.
M 5yrs 1st baby-girl born 6/18/08 Bomb: 10/13/07 OW - I was 6wks Prego H Moved in w/OW: 11/2/07 D Final 07/10 OW had his baby 3/17/09-so her Me, now - happier than I ever was with him