I started to date someone at the beginning of the school year. But he always posted depressing stuff on social media. So I told him if he didn't stop, I would leave him. He told me that was just him. And couldn't stop. So I left him. But now he keeps texting me saying that he's going to kill himself. And that its all my fault for him feeling this way. I don't know what to do anymore. That's why I came on here. Can you guys help me? What should I do?