Affiliate Marketing Secrets

So I go onto google today as per usual, however in the top left corner instead of say +You or whatever (since I don’t have a google+ account) it says Adrian. Now this somewhat confused me since I have never had any interest in making a google+ account. So I click on the page and the name on the account is Adrian Goerze or something, and upon googling his name, I realise he goes to my school. Now even though he goes to my school, I have no idea who he is.
A couple of ideas I have come up with are that he may have been able to access my google account because I logged in on youtube on a school computer, however surely he would need my password in order to make such an account. Also yesterday (though I doubt this is the case) someone installed like a proxy server on my laptop so I can get through the school firewall, so idk if that means anything. Either way I just wanted to throw this out there because I was wondering if anything truly negative could come of it (accessing my e-mail and stuff), I deleted the profile of course.
Thanks in advance 🙂