['I was in a party and I asked a girl for a date. She rejected me and told almost everyone in the party.', 'Wow.  That was uncalled for.  I am sorry to hear about that.  Sounds like she is not someone you would want to date anyway', 'Yes. I felt so bad that I left the party.']
Do not let it get you down.  There are plenty of people out there who are jerks.
I was in a party and I asked a girl for a date. She rejected me and told almost everyone in the party.