Rejection.

Many girls may feel like they have been rejected by someone they like because that person has interest in someone else. This can hurt a girls feelings because the person they like may not realize how much they would do for them or how much they care for them.
These are some things girls say about their past let downs from a boy they have liked but turned them down:
"I was sad and wanted to hurt the other girls feelings because she is the reason he hurt mine. I was mad too."
"When he dated my best friend I was mad but I didn't do anything about it because I was not going to end my friendship with somebody over a stupid boy."
"I felt disappointed and unwanted.I wanted to give up and seclude myself from everything."
"I felt not good enough and I just wanted to sleep. I also wanted to tell him 'thanks for leading me on'."
Sometimes girls will become unfocused on school and other events and will become emotionally distraught. They start to believe that they are not good enough, pretty enough, or worth that persons time. I do not think guys realize how they can hurt a girls feelings but eventually girls move on because they know they deserve better.