That kind of sex is drama sex, sex charged with regret and self-flagellation.
Watching Federer play tennis is still a religious experience, in the self-flagellation sort of way.
When Meredith finally kicks Walter out, he resorts to self-flagellation before attempting to commit suicide.
early 15c., "the scourging of Christ," from French flagellation or directly from Latin flagellationem (nominative flagellatio) "a scourging," from past participle stem of flagellare (see flagellum).
flagellation flag·el·la·tion (flāj'ə-lā'shən)
Whipping oneself or another as a means of arousing or heightening sexual feeling.
The flagellar arrangement on an organism.