B G#m E
Somebody told me that you found somebody new and you're happy
B G#m E
You were never really very good at being alone
B G#m E
Apparently, it's getting serious, so whatever that means
B G#m E
I'm sure you told him I was just somebody you used to know, oh, oh
[Chorus]
NC E
I know he doesn't know it all (Know it all)
F# E
No, he don't know that you and me had something chemical (Chemical)
F# E
The things you said to me when we were drunk in Montreal (Montreal)
F# E
I bet you told him about me,
F# (B)
But I know he doesn't know it all (Know it all, know it all)
[Verse 2]
B G#m E
Do you remember when the world was in the walls of your bedroom?
B G#m E
And everything you said to me was like a line in a song
B G#m E
I still remember what it felt like the first time I had you
B G#m E
And now he probably thinks that all your feelings for me are gone
(E)
And maybe they're gone
[Chorus]
NC E
I know he doesn't know it all (Know it all)
F# E
No, he don't know that you and me had something chemical (Chemical)
F# E
The things you said to me when we were drunk in Montreal (Montreal)
F# E
I bet you told him about me,
F# E
But I know he doesn't know it all
F# E
Like why you love the color yellow but you hate the song (Hate the song)
F# E
And how you told me I would always be the only one (Only one)
F# E
I bet you told him about me
F# (E)
But I know he doesn't know it all (Know it all, know it all)
[Bridge]
G#m F# D#m
Honestly, I hope you're happy, hope you're doing well
G#m F# D#m E
I still keep your secrets even though you're with someone else
[Chorus]
NC E
I know he doesn't know it all (Know it all)
F# E
No, he don't know that you and me had something chemical (Chemical)
F# E
The things you said to me when we were drunk in Montreal (Montreal)
F# E
I bet you told him about me,
F# E
But I know he doesn't know it all
F# E
Like why you love the color yellow but you hate the song (Hate the song)
F# E
And how you told me I would always be the only one (Only one)
F# E
I bet you told him about me
F# (E)
But I know he doesn't know it all (Know it all, know it all)
