Seems obvious to me that this was just a sick sport. She never did want his love. She wanted to torture a hapless soul.
She had arranged a vacation for them. When she became angry over the phone, she asked if she should cancel their vacation. Good was fed up and said yes.
She called back minutes later and asked if this was what he really wanted to do, because she already knew what steps to take to ruin his life. Good said canceling the vacation was what he wanted to do.
The rest is history.