Only you can answer the question as to how long you are going to hang on. If you would have asked me last year if I would still be here, I would have told you "no way".
At that time, my W didn't want anything to do with me, said she was "afraid" of me, forced sex on her, etc. Total BS. Now we are sleeping in the same bed (no intimacy)and are living as if nothing had ever happened. Totally weird.
Your W's MLC is something that you're going to have to learn how to navigate and that's why it takes ALOT of patience. What matters is what you do with this time that she's gone. You learn that there's nothing you can do to make her "fall in love" with you, so you do what makes you happy and take it one day at a time.
At times it will seem like it's easier to give up. But then maybe there's a voice inside of you that says " you can hang on for one more day" then that one day stretches to one week and then one month.
When you first dated your W, you didn't know if you would get another date with her after each one. In a way you have to get back to your "single" mentality where you had your own life and your own thing going on and it was up to your W if she wanted to hop aboard.
She's going to have to "fall" herself before she can see what a great thing she has going for her right now. Only she can do that. And besides, do you want the person who she is right now? Of course not. Your old W is in there somewhere, but she's going to have to deal with her changes on her own.
Stuck do you think sometimes your wife is waiting for you to take the lead and be physically intimate with her?