My friend has an ex boyfriend who has, well to be blunt, pretty much gone crazy. He's been stalking her and calling her and texting her constantly. About a month ago, he offered to pay for her to get new tires on the front of her car in the amount of $55. Now hes saying that he didn't offer, he only did it as long as she was willing to pay him back and he is threatening to sue her. Does she have to pay him back if theres no written and signed agreement stating that she said she was going to pay him back? Also, is this constant calling, texting and showing up at her job grounds for a restraining order?