[Lost&Found]

Why do exes, who already crushed your heart for no good reason, become so mean and uncaring after they do so? My ex came by last night to get her stuff and I brought it out to the car for her. She asked me to come sit inside with her so I did. She was very nice and talked to me like we were still together, even held my hand. I felt pretty good that night, sent her an email link I thought would be of help to her (she has been having emotional/hormonal imbalances and it was a link of women talking about the same problems she has been having). She sent me a reply that she knows her symptoms, that I don't, and that she won't even bother to look at the link and that I am arrogant for suggesting she would. I was only trying to be helpful!

She had some more choice words for me the next day, saying I am the mean one. Why do they get this way? She was always sweet and caring before, though she did have a temper and got pretty emotionally abusive toward me at times. Is she just trying to justify herself breaking up with me by focusing on every negative thing she can think of and just keep herself from feeling any remorse over the breakup? Do all exes who initiated a break up act this way?