Many hurts do not come from malice, but from ability.

Some people cannot communicate, some cannot empathize, some cannot take responsibility, and some even lack the ability to establish close relationships.
They may not intend to hurt anyone, but the way they handle relationships will itself continue to cause harm.
The truly subtle point is that when you understand all of this, you will realize that understanding a person's limitations does not mean accepting them;
Knowing that harm is not out of malice also does not mean you must continue to endure the hurt.
Forgiveness is letting go of resentment, leaving is stopping the consumption; the two do not conflict.
So my answer is always: close your umbrella when the wind is strong, change the tea when it cools.
Not because of hatred, but because of understanding.