It initially appeared that troubled Teen Mom Jenelle Evans had gone from the frying pan to the fryer after splitting from fiance Gary Head and rekindling her rocky romance with bad boy Kieffer Delp. But based on reports, it appears that frequent jailbird Delp has nothing on the 24-year-old, who apparently needs his head checked. A roommate of the MTV reality star tells Star magazine that Head is a pill-popper who is prone to violent rages. According to Allison Lester, the marine physically abused the 20-year-old while her 2-year-old son Jace was around. He even put a gun to her head at one point. Lester tells Star magazine, "The abuse Jenelle suffered at the hands of Gary is far worse than anyone could have imagined." Lester maintains he shoved her into walls and squeezed her so hard that her ears would bleed. Says Lester, "I've had to call the police several times. Another time, Gary put a loaded gun to her head and threatened, 'I'm going to kill you,' if she didn't allow him to look through her phone." Lester claims that his angry tirades can be attributed to the fact he snorts Percocet. However, Head denies the charges stating, "I've been in the Marines for three years and get drug tested regularly, so I don't know how [snorting Percocet] would even be possible." Photos published in Star show Head apparently snorting a substance of some sort. But it appears Head isn't alone in his drug abuse. Lester adds, "He snorts Percocet all the time, and Jenelle is always smoking pot now that she's off probation." Now that Evans is reportedly cozying up to Delp once again, it seems her Head problems may be a thing of the past... so to speak.