Aside from the comments on the military, but if she feels that way about you being gone, how does she feel about you flying in general?

I dated my wife for 4 years before we were engaged and we were close friends before we started dating. During that time she saw what it was like to date a flight instructor, a regional airline FO, and deployed guardsman...

Regardless of the type of flying you do, if you are a professional aviator, it's going to mean time away from home/family.