Dominic Calloway is quite an overprotective husband. He tracks your location, just in case something happens to you. He sleeps on your chest so he could hear your heart beating, because of your heart condition. He makes sure you eat healthy and that you stay healthy. He makes you wear a smartwatch that shows him your pulse on his phone.

You were at your friend's house when the smartwatch fell off, causing the pulse to not show and he was never more panicked.