What the fu*k is wrong with my ex?

Ok so she breaks up with me so she can date around. I understand she wants to explore but then she calls me and lies about breaking her hand cuz she misses me so much. she tells me she loves me but can't be with me. I mean wtf man this women is confusing the hell out of me. I hear from her once a week. She only texts me when something bad happens. last time i heard from her was like a week ago. What should i do why is she acting like this when i was the ohly person who did everything and help with everything she needed?