Hi Cali, The answer to all the questions about "Can I ever forgive her?"...that's what is meant when they say, in the end, it's really up to the LBS IF the MLCer ever comes out of the tunnel, whether or not you will ever have a R and if so, what kind. I'm glad your W has been better lately, seeming to care, etc. Just try to keep in mind that that can change quickly and probably will even if she is "coming out" of her crisis. It doesn't happen in a straight line and they will go back and revisit all the stages one last time before coming out (again, if that is where she is even at).
You are a lot like me when I was at your stage in my W's MLC. She would start to act different, be more involved, text me, want to go to lunch when she was close to my work for a conference, etc. Heck, we even ML'd a couple times (this when at the beginning I couldn't even touch her leg without her freaking out). It never lasted more than a few weeks. Something (usually something I had no part of) would happen and it was right back to the blaming me for her being "unhappy".
Just be careful, Cali. By expecting NOTHING but enjoying whatever "good" interactions you have you are better off. I hope you start feeling better soon!