How much will you put up with? (Details inside)

To go with my earlier question about going after the ones you love/find attractive, I want to know the other side of the story.
Have you ever encountered someone who wanted to be with you, but you didn’t share the same feelings? What did they do to try and woo you? How much will you put up with before going “f*ck off already”?
And have you ever been wooed by someone? As in, at first you didn’t want to be with them, but afterwards you did end up having a relationship with them?