Sorry to hear about the break-up, but you're right, it's probably for the best. Perhaps the best part is her agreement to see a psychiatrist; I hope she follows up on that promise.
I know it won't be easy at first, but I hope you both can begin to build new and more fulfilling lives. You won't have to compromise all the time on your needs and feelings, and that's a good thing.
Love means never having to say, "Put down that meat cleaver!"