If you’re on Facebook, you’ve probably gotten a friend request or message from an old high school classmate you didn’t quite remember.For one woman, that experience turned into a yearlong nightmare.Out of the blue, Jarrod Ramos, who lives in Laurel, wrote and thanked her for being the only person ever to say hello or be nice to him in school.She didn’t remember him, so he sent pictures. She Googled him, found a yearbook and realized they apparently did go to Arundel High together.He was having some problems, so she wrote back and tried to help, suggesting a counseling center.“I just thought I was being friendly,” she said.That sparked months of emails in which Ramos alternately asked for help, called her vulgar names and told her to kill herself. He emailed her company and tried to get her fired. She stopped writing back and told him to stop, but he continued.When she blocked him from seeing her Facebook page, he found things she wrote on other people’s pages and taunted her with it, attaching screenshots of the postings to some of his emails.She called police, and for months he stopped. But then he started again, nastier than ever.(See HARTLEY, Page C3)