Quote: My question is - is it possible, as a normal desire spouse, to truly accept your ND spouse though the remainder of your marriage?
Bag of worms...1st: you have to answer that for yourself. Take responsibility for yourself. 2nd: defining yourself as "normal" and your W as ND (no drive), is prejudicial and accusatory, and, no wonder she feels like you think she's broken. I used to do this with my W, so, you just have to work through this. The terms HD and LD are relative in nature: I have a higher drive than my W. She has a lower drive than I. I've actually never liked the ND label, but I suppose it exists.
Don't expect any immediate answers, monk. You will have to do some work if you want to hang around here. And, you will find, that your W will have to do some work, too. If she is not willing to do any work at all, that kind of helps you with your decision. One major question both of you must deal with is, what is the level of your commitment to each other?