I would wonder how much this man cares about you. It sounds like she does and did, but I think she over looked what her husbands thoughts were. It doesn't sound like he is empathetic so much as only seeing what he gets out of this... now wham, there might be more to it? "But I don't get anything out of there being more!"
Again, move on. I agree with sourgirl, there might be a chance of more sex times with her, but perseverating on being with her is not healthy or realistic... moving on is what I would do.
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