I ignored this asshole.
Why did you ignore him?
He is rude to be around
It is fine to ignore those who are rude to you. Interacting with them will only make you angry.
I don't need to be nice to anyone, especially if they are rude.
That's right. If they can't treat you with respect, then you have every right to remove yourself from their presence and ignore them. Toxic people will only bring you down with them.