Hello jrvirgil,
I have mental issues, and was thought to have BPD for some time. I would be happy to help you in any way that I can. If you want you can PM me. Or ask me any questions on this thread, tell me what you're going through, I'll try to give advice. You have to communicate, that is the most important thing. Communicate generously with your fiancé. Work on the quality as well as the quantity of your communication.
Keep us posted on your situation.
Sincerely,
Kevin T.