Is it possible to have sexual/romantic feelings for someone who doesn't return them? Sure. Happens all the time, and it usually sucks.
However, believing yourself to have been "put in the friendzone" as a conscious act, and that you somehow "deserve" to have your feelings reciprocated for "everything you did"... well, you probably deserve to be in the "friendzone", because an attitude like that signals a pretty horribly entitled and self-centered mindset.
However, believing yourself to have been "put in the friendzone" as a conscious act, and that you somehow "deserve" to have your feelings reciprocated for "everything you did"... well, you probably deserve to be in the "friendzone", because an attitude like that signals a pretty horribly entitled and self-centered mindset.