Do-do, do-do-do, do-do
Do-do, do-do-do, do-do
Do-do, do-do-do, do-do
(Your best friend)
Do-do, do-do-do, do-do

I guess my world completely filled with you just lately
Even when I'm not on your mind
I've found my feels getting weird, very complicated
Just wanna act as other girls, but I can't help myself
I can't help myself
(I can't, I can't, I can't)

I'm so jealous, don't know why, when you pet your kitty
Had to accept that I fell for you in the end
You always seem like you need me, baby, but I know
That doesn't mean you love me, just like I do

Just like I do
Just like I do
Just like I do

We message every day
(But babe, you don't know me at all)
Can't tell you anything
(Nothing, nothing, nothing)
If I say that I'm into you
I can't stay your best friend, am I too late?
Can't be your best friend
Your best friend
Can't be your best friend

I guess my world completely filled with you just lately
Even when I'm not on your mind
Very sometimes, heavenly, you make that smile for me
As if I'm your everything, just like I do

Just like I do
Just like I do
Just like I do

Do-do, do-do-do, do-do
Do-do, do-do-do, do-do
Do-do, do-do-do, do-do
(Your best friend)
Do-do, do-do-do, do-do