My (28f) boyfriend (34m) went on a trip without telling me. How should I bring it up to him?

I feel so stupid. I just saw my boyfriends recent locations on google maps as I was planning a surprise trip for us. I had an idea of the trip I wanted to plan and wanted to see the route so I logged into his google account onto my PC. Well it pulled up all of his recent locations and there were places I’ve never heard of. I clicked on them and it was places in Nevada, Oregon, and Washington state. I knew he wasn’t in any of those places because he told me he was helping his friend in California and then the rest of the time he’d be at his parents house. <br><br>I then looked at his credit card statement (he gave me the info to pay the bill) and there were charges for restaurants, gas stations and hotels in Nevada, Oregon, and Washington state. <br><br>We’ve been together for 5 years and he never did anything like this before so idk why this is hard for me to bring up. I want to act like I don’t know and ask if he’s gone on any cool places recently but I don’t want to give away that I know so much. Also his friends and family know me and I’m sure some of them could have seen him… what should I do?