I am nearly 50, and have only been married once for a few years, several long-term relationships, but anyway, my point is that I've had numerous BFs over the years...a bunch...and I can tell you, once we break up, we break up.
We don't keep talking, calling, I didn't show up, I didn't take groceries and leave on their doorsteps. It's over.
She cannot let loose until she had her next victim lined up, which of course would need to provide her a new and better "opportunity."