Dear green in Board Question #32495,
NO!!! If you've repented of any past morality issues, do NOT bring them up. It's not your fiance's business--it's yours and the Savior's. Feeling like you have to confess already-repented-of-sins to someone not involved in the sins is completely selling the Atonement short.
DON'T do it.
- Kicks and Giggles