Hey,

I think nearly every client out there does it and just doesn't say! It's curiosity and also when we go into therapy and tell our T so much about ourselves, yet we no nothing or very little about them - this increases this curiosity.
I think everyone knows that nothing is private if you put it online anyway!

I doubt he's even really that bothered about it, it just probably caught him a little off guard but he would be niave to think that most of his clients havent done this lol.

Did you tell your T that the reason you wanted to tell him all these things was to show you trusted him? If not I think it would maybe be valuable to tell him this at your next session so that he understands your reasoning behind it and that it wasnt about you trying to say you knew or wanted to know personal information.

Don't worry you didn't do anything wrong and I'm sure he knows this