Hmm, hmm I tried going to the movies I done Netflix too I still watch all the same damn shows But they're nothing without you I sing songs with this new girl To give me déjà vu We tried singing that Elvis one But she didn't know how to You and I had miles and miles ahead of us I guess time flies by when you're 18, I remember Standing on the roof of my car Singing all the way to your heart We didn't have all the answers All we needed was us And I wish I could've stayed by your side Everyday you plays on my mind I still can't believe you used to be mine You used to be mine You still got my t-shirt A couple jumpers too Yeah I know I should take them back But I'm not gonna try to I write songs when I'm lovesick And yeah, they're always true I keep trying to convince myself That it isn't about you You and I had miles and miles ahead of us I guess time flies by when you're 18, I remember Standing on the roof of my car Singing all the way to your heart We didn't have all the answers All we needed was us And I wish I could've stayed by your side Everyday you plays on my mind I still can't believe you used to be mine You used to be mine You used to be mine