Im so confused...

So for like the last year and a half i have thought i am homosexual, which i have been so depressed about. But then i met this guy through a website, we talk amost every day on msn, i really like him, but he likes 2 girls, neither of which is me. One of them likes him back, and he is kind of going out with the other one. He is also younger than me by 3 years, but the girl he likes is oldr by 6 years (the one who likes him back) so he seem kind of young for me. (i know this dosnt matter as you get older, but as i am only 16 it makes a difference to me) I feel so down, espically as i finally found a guy i like.