Should I sign a summary dissolution while my husband is home on R&R from his Iraq deployment?

The background is my husband who I married last April deployed to Iraq in late May. He broke up with me about a week and a half before he left, put all his things in storage, tattooed his ex girlfriends name on his chest and left for Iraq. I have not seen him since that day, although I tried, believe me. I begged, pleaded for him to come back to me. He says he is marrying this other woman the ex girlfriend (no kids or anything) and that all he needs to talk to me about is the divorce. He has never given me a reason, he says that I didn't do anything its just that he loves this other woman. He was the one who pursued me, the first one to say the I love yous, the one to pressure ME to get married, he said he had dreamed of me as a child, we were picking out houses to buy when he got back, I thought we had a great relationship but obviously he was not happy. At first he swore there was no one else but I found out about the tattoo when he "accidentally" texted me saying "I do love you baby, I am tattooing your name on my heart at 7" so I thought he was coming back to me and when I texted him back, he replied by saying "oops that text wasn't for you I am marrying Paula" and I was like who the hell is Paula?? And then he left for Iraq. My health insurance is through him but other than that we dont own property together. He has never sent me ANY BAH although I told him not to worry about it - mostly because I really thought we would have gotten back together by now. I love him very much this is devastating for me. I wouldn't marry someone I didn't love how can someone do that. SO now here is my question - He is here, in town, and wants me to meet him to sign what I ume are Summary Dissolution papers, where you both sign and that's it, once filed you are divorced in 6 months. I figure if he is going to divorce me, he can just do that on his own right? I want to see him, which I told him, but he wont see me unless I "sign the papers." Im so torn what to do. I want to keep my health insurance longer than 6 months because I am in the middle of some treatments, but he wants to move on with his life and marry this girl. Our teenage daughters are friends, so I have a reason to keep it friendly, but do I give up all my rights? Part of me still hopes he will change his mind once he gets back, I really think the stress of the deployment is messing with him, he is not even like the same person but I took those Christian vows to stay with him for better or worse, so I also feel ike out of principal since its him asking for the divorce, that he should do it all. Can I stand my ground and still try to be friendly? Could our marriage ever be saved? I don't want any drama. Ugggg what do I do. Do I sign or not sign? It might mean not getting to see him during his leave :( Im so confused