faking empathy

am i the only one who puts in an effort to fake being empathetic in order to appear normal but then get frustrated whenever people actually believe the act? i feel misunderstood even though it's my own fault for presenting myself that way. whenever i actually tell anyone i don't feel much empathy at all, they always say like "oh but you've acted empathetic before?" yeah.. ACTED. and then sometimes i think wow they're really stupid enough to fall for it?

this sounds mean but it's a constant process for me that i really want to escape. unfortunately i am just wired this way and i doubt it will change