Have Relationship Questions? Ask a Counselor for Answers ASAP
She can "find herself" without the need for moving away. If she is not happy with herself and does not know if she loves you are two different issues. They do not have to be connected.
What you suspect may be the case- she's seeking a way to severe the relationship but profit from it while she figures how to manage financially on her own. You can offer to help her buy food for a few weeks; that is fair but, paying for anything beyond that would be taking advantage of you.
She will need to tell you what her plan is- how is she going to work on herself. Is she going to go to a counselor, engage in introspection and resort to self help materials, etc. She needs to also tell you during what time frame should you expect this to take place.