I've been treated badly by an ex girlfriend, and I left her. Why is my brain so eagerly trying to convince me that she was good for me, and that I should write to her to try to fix our relationship? But when I think about it rationally, I know it's best if we stay apart.
My girlfriend told me she likes someone else after a bad fight about our relationship. She says she loves me and cares about me. What should I do?