Wow he really cheated! I think.?

I am currently living with a nother friend because my husband wanted to have some space! We have been together for 7 years and married for 3 out of those 7 in June. We have a 5 year old child and I am currently pregnant with his 2nd child(due in 4 weeks!). When his friends all got deployed again and he didn't he became a different person and like a real women I stood by him. He began to drink a lot and he wouldn't come home until the morning. My friends began to act shy around me and not talk as much so Iasked them what was the problem. They told me that my husband had brought one of his co-workers to a friends house and he did not tell me. I confronted him and her and told them that it was inappropriate and that I would like it if they would not talk until I met her and saw her as a friend. One day he got injured at PT and they brought him home to me for TLC. I was taking care of him when he recieved a message from a young female soldier (baby r u okay? I will buy you breakfast). I txt her back and asked her who is she calling baby! She tried to tell me that she calls all her friends baby. I asked my husband and he stuck to we r just friends. A few weeks later while he was sleep he recieved another message it was a picture of her in langerie! I forward the picture to my email account and printed it off. I asked my husband why would she send a pic to him like this and he said it's just a bikini! I reported them both to the SGT because I felt that I was being disrespected and I can't beat this girl up because she is a soldier and I don't want to hurt my husband's career. They put out a no contact order on them and I guess that was suppose to keep it down. They did not talk for a while and then my husband had CQ. It was an incident that just so happen to deal with him needing to get a report from her. Once that happened they went to the Field together and everything has went down hill. Long story short he began talking to her and ignoring me, drinking heavily, and not coming home. I found more text messages from her where she was buying him stuff and bringing it to him and then my last straw was when she txted him at 8 at night calling him baby again. As I went back into the history I found that she had invited him to her room to spend the night and he never responded to her so she was looking for an answer. I am currently trying to get a court order to get the message printed, and I have no idea wether he wants to stay married. He wanted me to give him some space because I went back to his job with the call records and the messages to show that they where still having contact. He has PTSD and maybe a few other problems and I feel that she is taking advantage of that. She is also a married soldier but her husband lives somewhere else. Does anyone have any good advice as to how I should go about this. I don't want a divorce, and he said that he loves me still. I see it but how could someone just put there family out? I have to think fast and on my feet because I don't want to go back to that lonely cursed house! I want to get a small apt. for me and my kids and get him in the barracks!