I’m I overthinking?

So last night I asked my husband a question. I asked him if we were to switch phones for a day is there something on his phone that would make me feel some type of way. Idk what response I was expecting but it’s not the one he gave me lol. He hesitated then said he doesn’t know. I asked him what he means. He said he doesn’t know if there’s something that would make me feel some type of way. I told him if he had my phone all day he wouldn’t find anything. I’m an open book and have nothing to hide. I guess I wanted to hear that from him too. Since then I’ve been in my head. He has talked to another girl in the past and came clean about it. So idk if I still haven’t healed from that or what. What do yall think? I’m I overthinking?