At a party yesterday 
 Saw the room where you and me 
 Had some fun, you thought it was love 
 Now I'm stuck here reminiscin' 
    And I try day and night 
 Oh, to somehow draw a line 
 Wanna cross it all the time   
 I think I'm mentally cheating 
 How could I be so disobedient? 
 I'm just eighteen, don't have experience 
 Can't help the fact that I caught feelings, oh-oh 
 I think I'm mentally cheating, oh, cheating, cheating (oh) 
 I think I'm mentally cheating, oh, cheating, cheating   
 I think I shouldn't be lookin' in those eyes 
 Why do they give mе butterflies? 
 Can't exprеss how obsessed 
 Is it purely the attention? 
 I'm just tryin' to decide 
 If I stay, I'd have to lie 
 To myself, feels like hell 
 To be in love with someone else   
 And I try day and night 
 Oh, to somehow draw a line 
 Wanna cross it all the time   
 I think I'm mentally cheatin' 
 How could I be so disobedient? 
 I'm just eighteen, don't have experience 
 Can't help the fact that I caught feelings, oh-oh 
 I think I'm mentally cheating, oh, cheating, cheating (oh) 
 I think I'm mentally cheating, oh, cheating, cheating   
 So goodbye, I'm out of time 
 Only said I love you twice 
 I know that it's not a crime 
 I need more to keep you mine 
 So goodbye, it's alright 
 Baby, it's a part of life 
 Something's gotta sacrifice   
 I think I'm mentally cheatin' 
 How could I be so disobedient? 
 I'm just eighteen, don't have experience (I'm just eighteen) 
 Can't help the fact that I caught feelings, oh-oh   
 I think I'm mentally 
 Oh, oh, cheating, oh, cheating, cheating (oh) 
 Mentally cheating, oh, cheating, cheating 
 I think I'm mentally cheating