WAW for 6+ years -- Need Help

[SolutionOriented]

I am posting again so I can possibly help someone new to this site or new to being cheated on by a spouse. Read my blogs and note what "NOT" to do. So, I asked W if she was ready to talk and she said she couldn't because of all that is going on now with son leaving for college and her mom not doing as well as we would like her to be doing. So, as my MC noted she may not talk to me until after S leaves for college which is on 24 Aug when we move him into the dorm. He will be local but she is still depressed over S moving out. So now I'm supposed to wait until after he's in the dorm. W is still acting 'unattached' although we both enjoyed some OS yesterday morning. W and I were both willing so why not. Of course, it was me pleasing her and not reciprocated but I didn't start it to have her please me. So, where are we now. I don't know. She doesnt' want to talk to me until he's off to college. I have started working out again like I was before in Mar/Apr of this year. I am still going to class and expect to graduate in Dec of this year. I have also been to church 4 of the last 5 weeks missing last Sunday but grateful that my M and MIL want to go. They will both be leaving end of July/beginning of August so it will just be the 3 of us again, but really just the 2 of us as my son has been spending alot of his time with his GF. Tragic that W and I don't fight about anything not even money....just this OM and how she 'loves him' and she states "ILUBINILWU" to me. I asked my MC last Friday how can I prepare myself for my marriage to end. Not sure if that's fatalistic or not, but it sure sounds like it. I'm just tired. It's been 8+ years now of this mess, but I also want to still work for my marriage. My MC jokingly stated that I should write a book about how I'm able to put up with this and keep getting up everyday. She thinks I have done a lot to try and save our marriage and has even recommended some 180's that for one reason or another I don't follow or don't follow as closely as I should. I guess I'm just not at rock bottom yet. Sometimes I try too hard and sometimes I think not hard enough or perhaps I'm too desperate and then too cold. I feel lost sometimes as well. Sometimes its just the person that has to muster up the courage to do what's right and I'm not sure I'm there yet. I believe I am by asking her to have 'the talk' but at the same time I'm not ready to throw in the towel either. I pour out my heart here as it allows me to vent and think and regroup for the continued battle for my M.