Invisible pain is still pain.

"It’s so hard to forgive people when they hurt us. It’s so hard to forgive stab-in-the-backs, lies, words that slap our faces. It’s all hard to forgive. More often than not, we want to hurt these people, right at the core of where they’ve hurt us - our hearts. But I’ve come to realize that hurting them doesn’t make us better people, it doesn’t make us happier people. Why let anger take over our hearts? We know how hurt these people have made us feel and it’s precisely for this reason that we shouldn’t hurt them back. So let go of the anger in your hearts, let go, and open your hearts to forgive."