As a victim of bullying myself, I have to say, you never get "over" it completely.
People will say "oh kids will be kids" or "boys will be boys" and act like that excuses it. "Kids can be so cruel" is said with some sympathy but no real desire to actually do something about it.
Each time I read about a kid snapping and taking a gun to school, I know exactly what would drive a human being to do that and understand. Each time I read about a kid breaking down and killing itself after years of bullying, I know exactly what would drive a human being to do that and understand.