Confront him, or not?

Say you had been with your partner for over 3 years (known each other longer) and have kids together...
He works hard & needs a massage. Being a tiny woman, you can't fix that problem. So he needs to go get a massage at a business. And you let him go after work, with your card, to do just that...
After looking up this place, you find out they also provide "personal" services on back pages. And he's been kind of jerky since he's been home (but could also be tired from work still). Do you ask him about it?
Keep in mind, he's never cheated on me or talked to another female that I've ever known of, and I find out just about everything.. I trust that he wouldn't cheat (even though he's lied about porn, big deal to me, maybe not you), BUT he stopped at an ATM before even going once, or calling. So that tells me that he looked it up. And if he did, it was on "incognito" mode or "private" mode because he clearly got on the internet 20 minutes before he left the house, but no internet history was left behind. So do I confront him (possibly giving him the chance to lie & hide it, like he's done with porn) or wait until I find out myself? 
Btw, I know I could be crazy, always will be lol. But I called the place & they claim to be licensed (but they're not). She pretended to barely know English as I was asking for the services, which she replied with "you want a massage?" every time.. Not to mention, reviews left behind on different websites claim they ask you to take all your clothes off, and they do just about everything sensual except "finish the job". I feel like I should go there myself to see how it is. 
**Edited for those asking about the trust: i don't give trust. It's earned. And all the lying about porn throughout the relationship is why I look through the history.