I had a similar situation,but i wasnt going out with the girl.She smiled and seemed a little bit interested.She was beautiful,but I did not feel I could handle any relatinship or friendship.It hurt a lot(nothing is worse than a broken heart),but even broken hearts can be overcome.Time Heals Wounds!
Life IS NOT fair,has dissapointments,awful things,but the Bible says "Justice is mine I will repay".I have some faith in God(Not Talking about organised religion nessecarily)....Most people that are depressed and upset have a negative view of the FUTURE,but God promises a better future...THATS WHAT KEEPS ME GOING.One mistake thats easy too make is putting faith in people,BUT people can let you down OFTEN.
A REAL FRIEND WILL BE THERE WHEN YOU NEED THEM.A REAL FRIEND DOES NOT DUMP YOU.