Hi. I haven't been on the site for a while but I see you've been getting great advice here. I caught up on your thread and you say you don't want to live in a sexless lifeless marriage. Your wife seems just fine with that though. Totally fine.
I would give her an ultimatum of doing marriage counseling and see a therapist specializing in sex therapy. If she won't do it and I mean immediately no delay for reason a, b, or c, I would look into filing for divorce. That is unless you decide you want the sexless lifeless marriage. Sorry for the harshness.