If you like someone but that person likes someone else what would you do?

Well if I liked someone and they liked someone else, then there is really not much I can do but the first step is to try and be closer friends with the person you like and build it up from then on

Maybe then it may work out for you but if it doesn't then I guess its just how it is

Move on, shake it off

i would be sad but I cant do anything about it I guess I will just stay friends