Why she behave like this?

Girl left me, she walked away. I did not reach her. I was tired of her childish behaviour. 6 months later I removed her from my facebook. Tomorrow she made new facebook, delete old account and post profile image with new boyfriend, also on similar image on cover page. I know her last 12 years and she never did that before. She never put any of her boyfriends on fb. Why she doing it? I am not jelous or anything, I wish him luck to deal with her anxiety. She left me, I just did not fight and let her to leave.

Why she behave like this?
Post Opinion