Disgusted that someone has a past? What BS? What disorder? The person in question is, by OP himself, described as having overcome a difficult past and is "the type of woman any man would love to marry". The crux of the issue is that OP can't reconcile the fact that the woman he has had this interest in was, at one point, a stripper. Though, originally, he merely overlooked this "terrible" matter because he thought she was just "someone to waste time with". But because she has this past that made her a "horrible" person, OP can't get over it. So the best that can be done is supposedly trying to look at her as two different people.

You're right, no one is obliged to deal with another person's dysfunction. God knows I wouldn't be obliged to have my significant other view my life with abhorrence and disgust.