I have browsed the threads on jealousy, and haven't found anything personally relevant. I can be more specific about my question I suppose.
I read a book called Sex and God: How Religion Distorts Sexuality by Darrel Ray. He claims that jealousy almost always stems from any or all of the following: insecurity, feelings of ownership, and fear of abandonment.
I have closely examined my feelings, and I have determined that my jealousy stems from insecurity and fear of abandonment. For example, when I imagine her loving someone else I worry that she may be having a better time than when she is with me. What if he is better at sex than me? What if they have more fun while on dates? What if she decides she just wants to be with him, rather than me and him at the same time?
I guess my real question is... does anyone have any advice for how to stop being insecure? What about losing my fear of abandonment?