I know that I am going thru some stuff and may not be the best at giving advice, but something jumps out at me. It seems as though she is burnt out on all of the old tired stale relationship worries that have gotten in the way in the past. The fact that she doesn't want to 'go there' may be in the dynamic of how those discussions play out. If I were lucky enough to have gotten to the point you are at, I would drop all of the bad stuff in the past (at least while you are with her) and live up beat and happy in the moment. If the fear is pursuing, then don't pursue. Make plans each week, take the initiative to plan dinners, etc on your own. Invite her to join, if she says no or acts like she doesn’t want to be with you, simply follow thru on your own. Don’t even remind her that it was her idea. Just tell her that it is fine and maybe you can come another time.

Good luck and let me know what you think will work best.