When replaying conversations you had and words she had said start to make you smile like you just heard that your favorite ice cream shop brought back a limited flavor.
That's when you know.

When you start checking your phone, hoping that she might've accidentally sent something and apologizing for it, planning how you'd casually say 'it's okay' when you'd stop yourself from blurting "I've been waiting for you to say something."
That's when you know.

When a simple "I like your smile." makes you feel lightheaded because of how hard you try to thank her sounding oh so casual while your face would get oh so red.
When you wake up realizing that you've started to sleep text her.
That's when you know.

When you find yourself wondering what she thinks about you.
What she thinks about abortions.
What she thinks about marriage.
Premarital ***.
***..
What she'd think about ***..
..With you
When you find yourself wondering how her hands would feel going down your bare back
If her whispers in your ear would make your back arch
If your ears would ever let go of the sound of her kissing you
If her kisses would be gentle
Or if they'd leave purple marks over your body
When you wouldn't mind either or.
That's when you know.

When you find yourself wondering if she had thought about you too.
When you know that if she asked, you'd try letting go of the things that you've held on to for so long.
That's when you know.
When she's been in your head for over ten minutes.
That's when you know.
You're ******.