I'm not going to console the girl who had a crush on me
What makes you think she had a crush on you?
It must be my winning personality.
It's wrong of you to just ignore someone who had a crush on you just because you don't feel the same way about them! Just politely let them know you're not interested so they can move on.
Nah, it would be nice if they just realized they didn't have a chance and move on and why should i let them?
Being unnecessarily rude and hurtful to someone just because they like you will make you appear arrogant. This is not a desired personality trait and will make you unnattractive if it continues.