Trust issues??

I woke up and couldn’t find my phone where I normally put it. It was on my husbands side of the bed. I asked him why didn’t you tell me you had my phone when I was looking for it. He’s like what, I didn’t have it. I brushed it off and was like whatever. Then when I open it, I saw my Instagram, FB messenger, text message and whatsapp (another texting app) I use for family internationally was all open. I don’t cheat and believe that if you aren’t happy you should leave before cheating. Should I be worried that he doesn’t trust me or?????