Then value her as a friend, instead of aiming to be something more. Friends can help with loneliness to a significant extent.

Likes you back? But is a lesbian?

Are you a guy or a girl

(1) Did she tell you that she’s a lesbian or was it someone else? Only she knows how she feels about you. Only believe what she says. (2) Maybe she is bi - meaning she is attracted to both men and women. Again only she can tell you the truth. (3) She sounds like a good friend to have. Talk to her honestly and listen to what she says. You cannot have too many good friends. If that’s as far as it goes it’s still better than nothing. But do believe her in how she feels about you. Don’t hold out hope of a sexual relationship if there is no chance. Accept her as she is.

Not everything has to be romantic or sexual! We all need friends! Consider it a positive, and remember that friendships don't detour from significant others that may come along later.

Tell her you're a lesbian trapped in a man's body. It might work!

You can always do a sex change ;)