DChristophe's reply history at Help.com

What a great opportunity life has given you! You and your fiance will undoubtedly both be attracted to and have others who are attracted to you both. Try talking openly with your fiance and tell her how much you care about her and that you were contacted by your old girlfriend and thought it would be no big deal. Now is the time to learn how to talk with each other in open and direct ways with one another about what you both expect from each other and develop trust and respect for your relationship and how you build mutuality.

This is just the beginning…learn to trust the power of your relationship to overcome everything and you will be on the road to a remarkable marriage. Best of luck and trust in your love for this woman you love. It really is completely natural for you to feel the attraction to your ex or other girls at times like this. The depth of a serious committment is a bit frightening, but ultimately brings out the best in most of us if you and she are a good fit together. It’s tough growing up, but the journey is worth the payoffs if you make it with a good partner.

Take a chance and just be honest with her about who you are and how you feel…regardless of the outcome, you will be able to know you were forthright and there was nothing you pretended about and will start to grow from it all.