She asked for you to give her space. Then give it to her and don't bother with her anymore. If she comes back to you in the future, then do what backup would do and use her for sex until you find someone who wouldn't want to ever take a chance of losing you by wanting space from you. (kidding about the sex part)
She's a nut. She stayed how many years with a man she never loved? Something wrong with that picture. People who are afraid of commitment don't stay in shitty relationships.
Delete her and her family from facebook so that you can keep from creeping them. They are her family... they are not your friends. Staying in contact with them will only stagnate you from finding someone good because when you're still emotionally connected to her, you won't see the inner beauty in anyone new.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion