She wasn't a home-wrecker to begin with. Her husband never loved Diamond at all but loved her.
As for that girl that Diamond was unfortunate to become a substitute for. She didn't need to worry about her. Since she was able to take down Diamond, who had dated her husband for over a year, dealing with that white moonlight was actually fun for her.
However, after so many years without hearing anything about Diamond, she suddenly showed up from nowhere.
If it wasn't for Queen telling her that Diamond was living in Frin and that Theresa's cousin had met her. She would have thought that Diamond had died a very long time ago.
After all, it was normal for heartbroken girls to commit suicide and end the shame and pain of being ditched by their lovers.
After hearing that, she devised a plan to have Queen invite Diamond to the reunion party. Her purpose was for the classmates to gauge Diamond's current power and see if she was faring well.
