I'd be worried regardless of whether he's married or notπ
IF's strange at time but then again so is FB. I got a message today from some strange guy saying:
"Hey yar....... U mght be not knwing me.... bt I need ur help.... U have to just acpt my friend confirmation..... f u wan rmv it, aftr smdays u cn rmv it ... Bt plse knw just acpt"
Needless to say, I ignored it and then blocked him. No way am I going to add him as a friend just so he could go through all of my pictures. :\
My worst experience on FB was when a random guy messaged me, not a FOB, and he was generally asking a couple of qstns, nothing personal and when he did ask personal q's, I ignored them and some how all his comments became sexual and he kept asking me where I live. I wouldn't tell him and eventually he told me! :O I realised then that you can easily tell by checking what network most of your friends have joined so ever since then I completely changed my privacy settings.