Perhaps just a few days shy of the end of her probation period, Jenelle Evans has decided to screw up again, according to RadarOnline.com. Cops were called to her apartment after it was reported that she was shacked up with her ex, Kieffer Delp. Hanging out with an ex-con and known drug user is a direct violation of her probation, which the Teen Mom asked a judge to lift last week so she could regain custody of her son. How the po-po found out her boo was over there is a whole 'nother story - Evans claims it's embittered ex Gary Head who squealed. She has shut down her Twitter account, but someone claiming to be her logged onto her friend Nicholas Mullen's account, writing, "This is jenelle. Gary called the cops on me and they came and told me to put a no contact order on him," CelebDirtyLaundry.com reports. Evans is due in court Tuesday to learn whether or not her probation may be lifted - this weekend's lovefest probably isn't going to help matters...