Hunter Hayes - Undefined lyrics

I'm not happy Though I know I'm not sad I'm not real pleased Though I can't say that I'm mad I've got no name for my state of mind Call me undefined I'm not content Though I'm not out of place I'm homesick Though I've been home all day I've got no reason, reason why I'm undefined It's great, the state I'm in Calling this no emotion within How I wish I knew what was wrong this time Call me undefined, oh, undefined I'm lonely Though I'm not alone She's here with me Though it feels like her heart is gone How I wish I knew why I've been so lonely, so lonely tonight Oh, I'm undefined