'The Challenge': Diem's downfall? -- VIDEO

Could tonight be the end of Diem? In a crippling turnabout, the control-freak Challenger finds herself defensively trying to crawl out of an elimination hole this week. Her desperate maneuvering sets off a domino effect of friction with competitor Jemmye and widespread doubt over on-again boyfriend CT’s motives in rekindling their showmance. If you’re not busy mopping up tears over the possibility that even true(ish) love is a pawn in CT’s game, watch the fireworks between Diem and Jemmye below.

The Challenge: Rivals II airs tonight at 10 p.m. ET on MTV.