Sorry to break the delusion but possessiveness when you're not even dating is not a green flag. Trying to control who the person talks to is not a green flag. Making someone feel like they have to sneak around you in order to have a social life you're not a part of 100% of the time is Not a green flag. Trying to keep someone to yourself and acting more than the friend you are is not a green flag. Nothing in this story is green