why does every boy leave me.

am i unlovable? like genuinely. every guy i talk to, he leaves me for no reason. ive done no wrong to them, but they always have to end things on toxic terms after ive done nothing to them. it has drained me so much, i currently like my best friend and i dont want to tell him because i dont want to lose him, im also scared of him saying he doesnt like me back.