How would you know is He's the One?

For those who are requesting here's the sequel of She's the One! Enjoy sweet potatoes! <3 <3 <3

I was him he was me
We were one we were free
And if there's somebody calling me on
He's the one
If there's somebody calling me on
He's the one

We were young we were wrong
We were fine all along
If there's somebody calling me on
He's the one
When you get to where you wanna go
And you know the things you wanna know
You're smiling
When you said what you wanna say
And you know the way you wanna play
You'll be so high you'll be flying

Though the sea will be strong
I know we'll carry on
Cos if there's somebody calling me on
He's the one
If there's somebody calling me on
He's the one

When you get to where you wanna go
And you know the things you wanna know
You're smiling

When you said what you wanna say
And you know the way you wanna say it
You'll be so high you'll be flying

I was him he was me
We were one we were free
If there's somebody calling me on
He's the one
If there's somebody calling me on
He's the one

If there's somebody calling me on
He's the one
Yeah he's the one

If there's somebody calling me on
He's the one
He's the one

If there's somebody calling me on
He's the one