Interesting that she notes that it seems harder for her as a woman to participate in rejection therapy -- indeed, gender roles are still so ingrained for many people. You could probably experience success as a male by simply asking women for their phone numbers every day until one refused you, but this approach would likely be more difficult for a woman to pull off.
I think the "official" rules for rejection therapy explicitly exclude hitting on women, if I recall correctly.
That's odd since this is the exact reason many men need rejection therapy in the first place; to learn to better deal with the realities of dating.
But it's obnoxious to drag an innocent bystander into your mind games.