i would be like thats flattering but i love you as a friend and we can still be friends.
That depends on how YOU feel about them
Thank them for the flattering thoughts then remind them I am not Gay.
LOL that depends on if it's a male or female. I would tell them thank you for their feelings and I would also tell them that since I am in a relationship that we could not be in a long term relationship but maybe we could satisfy each others sexual drive for a while. But can we keep being friends if we did that?