Man asks girlfriend to take lie detector test

DEAR ABBY: I have been dating this guy for five years. Two years ago, one of his friends came on to me through a text. I told him I’m not the kind of woman who cheats. He respected that and didn’t text me again. I told my boyfriend the very next day, and he no longer trusts me! Ever since then, he questions what I’m doing and where I am and accuses me of lying every time. He thinks I have slept with every one of his friends. He tracks me. He put cameras up and accuses me of deleting everything.