I am curious as to what your W thinks is higher quality sex. My H and I have our own issues here, and it's not that I want higher quality, but more intimacy and romance (not every time, but sometimes), whereas, my H is more the 'do the act' and go to sleep kinda guy. Yes, I have spoken to him about it, and when I bring it up, he just withdraws and we have no sex for months. I do try and approach him as gently as possible, etc. I am getting rather irritated with his lack of response to my needs.
Anyway, I admire your trying to meet her needs - getting the video, reading, taking dance lessons, and so on. I wish my H was as proactive as you are.
Just a thought, but have you tried approaching your W in a social setting, just to say 'hullo, and hope you have a fun time', then retreating to your side of the room and socializing with your acquaintances. I just feel your W is being rude in not acknowledging your presence, and maybe you should take the first step. I would feel very insulted if my H did this to me. I would feel insulted if just a friend did this to me.
Keep up the good work.
Me:57 H:52 M:28 Got another lawyer last year and filed. D35,S/D twins28,D22 EA4/04 End? Who knows? "Life is like a mirror. Smile at it and it smiles back at you." — Peace Pilgrim