He constantly takes for granted he can just tell me to come over, he decides what we're going to do, if sex is going to happen, tells me what I should or shouldn't do in various situations. He gets moody when I'm talking to guys, and got remarkably upset when I told him I was considering transferring to a different university. I also know he has been stalking my social media. He is mostly very sweet and caring, but the relationship is all on his terms. He also told me I should quit college and get a job. Is he being possessive, and why would he be?