Would you still be nice to someone you rejected?

Unless that person did something horrible against me, I don't see any reason why I should ignore that person. If that person took the rejection well, then I think it's okay. It's better to be nice to that person and probably forge a friendship instead of hating and ignoring that person for the rest of your life.

you must be proud but you can do nothing about it just respect their feelings.

It is unfair for the person to ignore him because I already cause him so much pain by rejecting him that's why I can really think I can offer a good friendship for him. There is no point in ignoring someone who adore you and love you and don't do anything bad to you. He is a human and needs affection and frienship. I really think it is fair to treat him nicely as a friend and as individual that he is.

So long as the person did not hurt me and he's not a potential threat to my other relationship(s), i'll still be nice. Afterall, my saying no does not mean nobody will ever say yes; and life goes on - he might still be useful to me in some other ways!