Yes, do sever the relationship. Trust me, I too tried to make it work with my very Mormon also returned missionary ex-girlfriend. I'm surprised this thread is still getting replies. The Mormon culture has mastered the forked tongue. He was the best decision I have ever made in my life, hands down.
Do you really love him, honey. Follow the footnotes and you start to find the lies. Be gentle with them and yourself. She started crying when I explained this to her. I don't know how to manage the resentment. Of course he invited me to come with him, but he is in the wedding, so I'll be sitting there watching him in the wedding on my 30th birthday weekend. She's such a martyr and a great person for doing this. She will probably feel persecuted and attacked if you try.
I look back the 13 years with such sadness and loneliness; I was extremely busy and had no time for myself or others. I will be checking your Blog frequently. It almost feels like a single parent family. In order for him to survive his residency much less thrive in itthe hospital has to come first, he has to come second, and I come in at third place.
Even after being in a relationship I have to take all the decision alone. I was thinking the same thing when I read this. I wish you the best of luck.