That's really interesting Muman. I had no idea about the three times rule. What happens if you forgive someone and then later on still feel angry about it. Should you forgive them again? I've thought I've forgiven people before but then they did something and it reminded me of a previous thing they did that made me angry, so I had to struggle not to re-open the old wound which I thought had healed.
What if someone apologizes, you forgive them, and then later they go and do wrong to you again. Are you taught to forgive them again, or should you then, according to Judaism, hold a grudge?