When do you give up without being a big, fat, whiny quitter? Ever? After everyone else? Once you are beat to a (maybe just figurative) bloody pulp? Never?
How much can/should you take? What if the miracle would have happened on the next try, except you walk away instead? But what if you keep trying and it never, ever is gonna happen? What if you miss out on the right thing because you are wasting time with the wrong thing?
How about staying with something/one/place because, although it isn’t right, it’s known, which is less scary than the unknown. That can’t possibly make you a better person than giving up, right?
You got to know when to hold ’em, know when to fold ’em. But how do you know?!