Letting matters fester or shoving important topics aside often leads to a bigger problem later.
You'll nurse this wound and if you don't find some way to reconcile your pain, it'll fester into a mighty stumbling block in your life.
If allowed to fester, stress can eventually cause more severe health issues, including diseases and health complications.
Don't shove that feeling down; it's important that you give voice to that anger because otherwise, it'll just fester.
Don't lose sleep and fester on it.