How do you know if a guy likes you?

My friends says he does... my gut says he does...

and then there are days, like right now, that i dont feel it.

But earler today we were flirting and it just felt like perfection.

I don't know if it is my confidence or my gut telling me the truth.

I just know that i really like him.

We have been having this flirting thing going on since school started.

He says things like seeing you makes my day, your beautiful, 

he likes my smell. (weird i know)

We walk each other to class,

People ask us if we are dating, 

We eat together sometimes.

We don't text. He called once.

He is graduating this year,

And i've recently found out....

he has a girlfriend.

So I WILL NOT make a move.

I don't know what to do anymore.

And all this is bottling uo and i had tor release it.