However, I feel that whenever I do sense a bit of jealousy, its not that I am afraid to lose my partner. It's the fear of being tricked into being with someone who is not worth it.
Wow brother you couldn’t have said it better. I feel the same way. In fact when I was married to my X I often floated the idea of possible having my X wife hook up with another person if she wanted to do it. I gave her that permission, but the feeling of jealousy I have now with my GF is just as Golden Wolf describes. I just want to know if I can trust my GF. If she is worth it. I really enjoyed being single before her, I got laid plenty so it's not like I settled but it bugs me that I really don't know.
It's kind of like this. I am a month shy from being 32. I am not getting any younger and I feel like I am at the peak of my Swingerhood. I feel like my door will shut on me in a few years and it will be more difficult to go to clubs and mingles with the youngins. I just don't want to be that guy so I feel like I can potentially be losing good years of my life to someone that might cheat and lie to me. That fuels my jealousy.
I have already lost my twenties to a woman that kicked me to the curb after ten years and I am really carefully not to let another one take the next few good years away.