what does it mean when you cant get someone out of your head

sometimes you lie awake and think about their face in bed

Even though they are there and you are here, both of you possessing different warm bodies

Does it mean your just obsessing and the stressing is making it worse

Some kind of thrill in wondering if they thought of you too

Looked at you down to your shoes, hanging on every word you say as it drips from your mouth propelling them down into a puddle

It means nothing