Artist vs Poet - Leavin' lyrics

I was walking with myself today I couldn't help but think about your face And I always regret cause I'm always forgetting what the rest of world looks like I grab my guitar and I made some sound Painted a picture and tried to leave you out But your persistence led to obstruct my vision and I couldn't lay it down I wasn't going to write a song I wasn't going to write a song about you I wasn't going to write a song about you leaving I drink a fifth and started counting sheep There were just as many as the days that you left me Been marking it down, I never lose count The bottles they don't ever lie So, I stumble to the keys and made some sound Played it decent and then tried to shut you out And I don't know how but girl your melody came pouring out I wasn't going to write a song I wasn't going to write a song about you I wasn't going to write a song about you Leaving in the middle in the night through the back door Leaving cause it's all you're ever doing anymore Leaving cause you're never going to find what you're looking for Leaving cause you want another song I wasn't going to write a song I wasn't going to write a song about you I wasn't going to write a song about you leaving (Cause it happens every time) Could you show me where I went wrong? Oh, could you tell me cause I'm lost without you And I could put it in a song about you leaving