Don't tell her you love her until you're absolutely, exceedingly, profoundly, certain you'll love her forever.
Cause she'll take those words and soak them into her skin, absorbing them, and soon enough you'll make her heart melt and it will fall into your hands.
But she'll say them back and mean them completely. She'll hope and pray that you mean it as much as she does, because she's already falling, trusting you to catch her.