Enforced: The author downplays the theme of Revenge by proving that it's okay to forgive those and still be mad at them.
"How can you forgive me while you're still angry, Alice?"
"To forgive but not to forget as a hero...well, guess it's back to being myself for me."
Invoked: Evulz constantly taunts Bob for "making the mistake of trusting her" to stop Bob from thinking she's his ally, creating mistrust among them.
Exploited: Because Alice knows Bob may repeat the same action, Alice acts this way to get him to improve himself.
Alice decides to not give Bob the benefit of the doubt since she doesn't trust him.
Alice wants to forget about Bob's betrayal, so she is happy for his change of heart.
"It seems that people who forgive but don't forget are the ones who don't move forward."
"I know that you're sincerely sorry, but I cannot simply forget what you did, and it will take time for me to truly trust you again."
Conversed: "Why is it that all these characters always act like dicks while forgiving them?"
The more Alice continues to remembers Bob's past actions, the more she behaves coldly and hard-heartedly towards Bob. This made Bob get the impression that she has never forgiven him at all, thus putting a black mark in their relationship.
Reconstructed: But the two learn that while they're willing to forget, they are unable to, so Alice and Bob rebuild their friendship agreeing that even if it's difficult, they will try to forget the bad and remember the good.
Played For Laughs: Alice's Catch Phrase whenever someone apologizes for doing wrong is "I WON'T FORGET ABOUT IT!!"