what are some examples of the ways she shows affection? Some people are just flirtatious in nature. I have dated guys like that; girls always had crushes on him because he was just charming and flirtatious in nature. In the end, I couldn't deal with it so we broke up. This sounds like something that needs to be taken care of before you guys get married. If you two are planning on spending the rest of your lives together, you need to have open communication where you can flat out say to her "I'm uncomfortable with your affection towards (insert names here)." If you two are really in this for the long haul, she should be understanding about it and talk about it.

Its not healthy to go into a marriage with a jealousy issue or issues of trust.