Or a certain kind of people. They make you feel like you’re the only person in the world that they pay all their attention to. Like you’re actually special, and that you mean something to someone. Finally. 
And then when you feel like you’re at your happiest, they suddenly just.. stop. They randomly drop you because now that they have you on your toes, you’re no longer important. They have you where they want you, and so they move on. Because those kinds of people are heartless assholes who makes you feel special when you know you’re not. Screw it all.