Obsessual
They're the type to text you at 2 a. m. just because they're obsessed with your life. They can't stop, and they won't stop.
I'm texting you at 2 a. m. because I can't sleep. You're my obsession.
I'm obsessed with your life and I'm gonna text you every day until you're obsessed with mine.
I'm not stopping. I can't stop. You're my obsession now.