How did you know he/she was "The One"

Shayla • Mommy to 2 angels 👼 •Mommy to Myah 🌈 👑 👶 Divorced once. Happy Again 👨‍👩‍👧
I am so in love. And everyone who sees us together says, "I've never seen someone who loves someone like he loves you." I just want to know how or even if you ladies knew how he/she was "the one". I feel like he might be. I've never felt like this before. I need him to be "the one". He's brought me out of so many dark times and I don't want to hurt him