cringe therapy

A self-help tactic used to remind an individual of how bad the individual's ex-partners were. Cringe therapy involves an individual staring at distasteful pictures of a particular ex-partner until the individual cringes (or expresses other negative reactions) and returns to more productive activity.

1: Dude, how'd you get over your breakup with Jeff so quickly?
2: He was a dick, bro. I forgot all the things I hated about him until I started cringe therapy.