Jenelle Evans officially filed to separate from husband David Eason as he faces child abuse charges for allegedly strangling her 14-year-old son, Jace. Although the Teen Mom star did not petition for divorce, she did cite several concerns she had regarding the 35-year-old’s allegedly violent past behavior in the legal paperwork. “Throughout the duration of the marriage of the parties, the defendant has exhibited concerning and at times disturbing behavior towards the plaintiff,” the court documents read, according to a news outlet. “In May of 2019, Defendant shot and killed the family’s pet Fr…