So I'm just wondering if there is another reason behind your urge to confess- like a way to connect with him? If that's it I wouldn't say anything. You didn't do anything wrong, the profile is public. Even though he uses an alias, he's disclosed personal information that made it easy fr you to figure out. My take on the googling and Facebook snooping is that Ts are more aware of their online presence. If they choose to create profiles they are aware clients will see them and don't think much of it. Or If you want to see if he'll get angry about it (which he shouldn't) to shake up the dynamic of your relationship then I might go ahead and tell him.