Bitterness is a group chat with one member, and you keep reading the same messages.

Bitterness is a conversation with nobody else in it. You replay what they said, compose the response you never gave, and every rereading makes the memory sharper and more certain, while the other person is out living their week with no idea. It feels like justice being maintained. Mostly it is unpaid work on an injury that already happened.

Notice how many times you have run the same scene this week. You do not have to forgive on a schedule or pretend it was fine. Try interrupting the rerun once, out loud if you need to, and handing it to God instead of reading it again.