Quote: I would like to ask everyone what I could do to assure her that she's not a "disappointment", but in fact, I feel that she is.
Don't lie to her, but don't necessarily let her in on THIS, either. This is your crucible, and you need to work through it.
Quote: My struggle seems to be with my own feelings.
That is true.
Quote: I keep telling myself "she owes me nothing, she is not obligated to 'desire' me just because we are married." But if she says there is "nothing" I can do to improve her desire for me, then I'm lost.