Should I be worried?

park

Hey girls. I hardly ever get on my mans phone. I only do it if mine is dead in the car and I’m bored. And then I just play his games and look at our pictures. So today he had a job interview and I was changing the music from his phone. I went to turn on the low power mode since his battery was low and at this time he was opening the car door and said “what are you doing? Get off my phone” I was in settings. I wasn’t going through anything. This caught me off guard because his messenger and Instagram are signed in on my phone (he did this himself when he didn’t have a phone). I don’t get on his media but could if I wanted so I know there’s nothing on there. Does his reaction strike anyone else as strange?