Why does it seem like one minute a girl can be so into you then the next minute she has some weird obsession with her ex? Whats the cause? Me for doing something wrong or not being good enough or her for just not being over her ex? We have been hitting it off for about a month now and I asked her on a date last week for a comedy show Thursday. I bought her and I tickets. Last night she threw a party at her place and everything was going good... until her ex showed up. They both disappeared and I wasn't going to ******** around so I just left.