Don't get attached to someone so easily. Sometimes people can't be predictable.
Like one minute they'll make you believe you're in a paradise with them and everything is in magic, and then the next minute you are already all alone, swimming at a dry lake, and everything is empty. There's a huge difference between that. And you, you owe it to yourself to know what is the difference within the two.
It's not being dramatic over things. It's a self aid from certain people, from uncertain feelings.