Self Respect vs. Ego

There is thin line between self-respect and ego.

What I feel is self-respect for me , may be perceived by other as an ego.

If something hurts my self-respect, I definitely feel anger.

But if I exhibit my anger, other will perceive it as an ego.

What exactly distinguish self-respect from an ego ?

Probably everybody will call their ego as their self-respect.

And other's self-respect as ego.

Probably anger is the main culprit.