Never had a relationship before and I am depressed about it? Don't know who to talk to?

[Zoso]

I am a 21 y.o. (almost 22) college student about to graduate. At this point in my life I have never even been close to having a relationship with woman and have been rejected by every woman I have gotten close to and really hurt by a couple of them. I wish I could for once meet a girl who liked me the way I liked them. I have never even had my first kiss. I try not to let it get to me but I have been very depressed since I was 19, most people would probably think I am overreacting but it really bothers me. I always try to put on a smile in social settings. I can have fun when I am with my friends and take my mind off things but there can be weeks at a time where I am very depressed especially around the holidays. I try to keep these things to myself but lately some friends and co-workers have noticed a change in my demeanor. I don't feel comfortable talking to anyone about it because I don't think my friends can relate to my situation or would understand. My friends see me as the emotionally stable one and I am usually the one they come to for advice and support.