LDR is never easy no matter what the configuration. but it sounds like- just sooounds like, only you know for sure; that you have placed her as the sole person to fufill you romantically. While she is embracing new love as it comes as well as what she has now.
It must be hard to not be with...
My husband and I have been together for 5 years, and I came out as Poly to him a year and a half ago. I've always been wired this way, but beat myself up for a long time before accepting that it was ok (let alone beautiful), and longer than that till I shared with my husband.
It hasn't always...
Good question! I would think this happens to the best of us, sometimes I even find myself doing it. I think unless the trash talk is a legitimate concern, its coming from a place of jealousy or insecurity. We have to look within ourselves, or have a discussion with the disgruntled partner to see...