Short Sale.?

Hello everyone i have a few questions and some advice i am seeking answers to. I have a house that I love and hardly making the money to make that payments. Someone gave me the Idea of short selling it to my fiance before getting married. I owe 215k and its now appraised at 160-180k. The bank said if I have a seller that i can do that but they dont know its my fiance. If I do that and then get married in like a month or two will it come back to me? Does it hurt my credit?