I've been pretty good, actually now that the rest of the guys I deployed with are coming off of R&R, they're available to do stuff. Spent the day kayaking and went to dinner with friends and had a great time. Still had to go home a little early to let out the dogs, the W was working at the time.
W has been honest with me that she still has contact with the OM outside of work, but I've not tried to control, still giving her the, "you do what you're going to do, but I'm not going to wait around for you," bit, but I will say that in-person contact with the OM is down drastically (because we're spending a lot of QT together). I haven't had any, "episodes," since the last backslide post, probably because I've stuck to my no-snooping resolution, despite opportunities to do so. So that feels good.
I still feel like I'm in a Catch-22 though, I've been doing well in the GAL department by reviving old hobbies, going to the gym, going out with friends without the W, and not controlling what the W does with her time, but I know that by being unavailable all the time or ignoring her plays directly into the reason she sought an OM in the first place. We have been spending QT together a lot recently, and she suggested that I take some more leave so we can spend more time with just the two of us, during times when I know her and the OM would have all day to be together. As an aside, the gym I just joined is not the one she goes to, I know the co-dependent me wouldn't have done that before. I probably would have joined her gym and tried to make due in a place lacking in the equipment I prefer just so we would be at the same gym.
Anyways, I do still always have the, "am I being taken advantage of," question in the back of my mind, but there's no doubt that time passing and GAL efforts have helped my mental state greatly. Thanks to everybody here for the help so far, and I know I've still got a ways to go.