Lonely

I have no right to complain. I have a boyfriend/fiancee who loves me very much. He won't let me go to work on the subway alone. He protects me and cares for me. His parents took me in like I was their own. They welcomed me with open arms and never once made me feel like anything except a part of their family, their daughter. The people that I work with are fun. We joke and we laugh and it passes the time. My family loves me and I call and write them. I can talk to them anytime even though they're so far away.
I feel so guilty saying this, but at the end of the day I'm lonely. I have Dan right beside me and so many people at the touch of a button; but I don't have a girl friend. One girl that I can call up and go to the mall with. Go out and see a movie that we both know will be rubish. I want so badly a close friendship like that and the worst part is, I don't know where to look. Most of the people that I work with are guys, and I don't do much besides work and go home.
I live in this big city for once in my life, and I'm not taking advantage of it. I don't go out and go sightseeing. I don't go to museums or aquariums as much as I love both and I don't know why.
I don't mean to complain, I have no reason to, but I'm lonely...