I'm not talking about when you are by yourself and there's no one and you feel empty with your thoughts, I'm talking when you have people around you, but you have no partner or opposite gender friends. I live in a big family but at nights I always feel lonely because I can't talk to someone, and I don't share my problems with my family at all. I can't talk with anyone and I have few close friends, and when I talk with someone new I just can't talk to them normally and they always see me as a "weird guy", and I have no girlfriend or a girl I could talk with. I don't know how to word it but it's not the same as I'm talking with my male friends.
Sorry If It's not easy to read, but I think you can get the point