KINDNESS IS NOT WEAKNESS
Being kind to rude person doesn't mean that you approve their behavior. It means that you can see beyond their behavior. You stay calm and centered close to your heart full of compassion. Never lose your good pure heart because of the outside world.
Because the world needs your light. The world needs your goodness.
"If someone stays with you after you hurt them more than once, they love you. Think about it, they're choosing pain over pleasure'.
In life you don't get people you WANT, you get those you NEED. Never mind if you can't please everyone, what matters most to please God above all.