[Verse 1]
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'

[Pre-Chorus]
And I try day and night
Oh, to somehow draw a line
Wanna cross it all the time

[Chorus]
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

[Verse 2]
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

[Pre-Chorus]
And I try day and night
Oh, to somehow draw a line
Wanna cross it all the time

[Chorus]
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

[Bridge]
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

[Chorus]
I think I'm mentally cheatin'
How could I be so disobedient? (How could I be so)
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