If they ignore/injure you just because they got denied then I can imagine they are quite annoying. But yeah, like Dr. Fetus sayed. There's no reason you cannot be nice at least.
Normally i am Nice to them but on Valentine's day is it so freaking much and it's not easy to be Nice when 3 Annoying peoples Ask you to be their valentine. and yes maybe i got a bit mad but Normally am i Nice to the most peoples i am meeting