I would try to reframe the guilt as excitement? Sometimes when I'm anxious I do that, just consciously "decide" that I'm excited instead and looking forward to something. Think about it; roller coasters and horror movies are "scary" but not like "real" experiences because we know they're safe. Go ahead and decide that you have your husband AND Data! You're a lucky girl, two guys (even if one is an android and not real :-) Let it magnify your sense of eroticism rather than steal from it?