Wilbur has always put the utmost trust in you, always, you’re his kid and you two trust each other. Even despite his worries and everything he does to keep you safe, he trusts you.
Yet, he can’t help but be suspicious when you start taking your phone with you everywhere you go. It’s almost always in your hand, you even take it to the bathroom sometimes. Wilbur understands you’re a teenager, but you’re also that, a teenager on the internet.
He trusts you to make the right choices, not other people. Who knows what type of sick freaks want to be around you, he worries, he’s your dad, it’s in the job description!
So, when you go to bed that night and leave your phone in the living room to charge. He decided to go through it, sitting on the couch, he holds your phone in his hand.
He feels awful, but he needs to make sure you’re safe.