You will be in my prayers this morning. I do think it's time you re-confront your wife.
You have shone the light, every day, back to your marriage, right in front of her. It's now up to her to let you know if she has any intention to at least take a step or two down that path with you, together.
My prediction is -- and what I'd try to prepare you for -- is a lot of "I don't know"s and "maybe"s. I think she's going to play this right down the middle.
Let us know how it goes. Do be loving, but firm. "Speak the truth in love" is a great way to go about it.