Heroic Friendship

Everybody like to make friends, no matter what they look or they redeemed themselves, friendship is more important.

Here's the reason:
 * they understand how they feel or what they're going though
 * change the selfish person into a good person like Belle and The Beast
 * realize that they're good people and prove everybody that they're wrong about them
 * they want to be best friends forever
 * sometimes friendship can act like a brother, sister, father or mother figure
 * knowing that their friendship will never be broke

Examples

 * Tails and Sonic have been best friends ever since
 * Amy Rose like her friends include her love interest Sonic
 * Itchy and Charlie have been friends since the tv series