"Look how he abused me and hurt me,
How he threw me down and robbed me."
Live with such thoughts and you live in hate.
"Look how he abused me and hurt me,
How he threw me down and robbed me."
Abandon such thoughts, and live in love.
In this world
Hate never yet dispelled hate.
Only love dispels hate.
This is the law,
Ancient and inexhaustible.

Now see? Buddha takes a different thought approach than most of us would normally do. For most of us it would be a natural reaction to dislike someone who cheated or abused us and to harbor resentment. For some, they will accept and almost invite being abused by a partner because of probably not enough self belief and trust and faith in themselves. Buddha chooses to harbor no ill will but does so out of compassion and and he does it with well and deeply thought out reasoning and resolve and utmost inner confidence and strength.