Why is my Ex Gf ignoring me?

[Smity G]

Ok so she told me that Im obsessed and that I try to please her to much which i was to an extent. I told her Im not and ignored her for a couple days being very mean. Then she went on my facebook profile while i was ignoring her and deleted every like or comment she wrote on my page and profile pictures. I called her out and got no response and now shes completely ignoring me and its been 3 days going on 4. Also ever since shes been ignoring me shes been constantly on facebook the most shes ever been on since ive known her for a year. Every second of the day shes not doing something shes on facebook now? please help