[user104658]

Originally Posted by Zizu

Surely you’ve noticed that basically everything confuses him .. he’s not dissimilar to Ozzy Osbourne in that respect possibly worse

He had to ask BB for assistance finding his way back from the diary room ffs

Sure, but if you believe he's vulnerable because of that, then the people assessing who is fit to go into something like this are the ones to blame if there's a huge problem. If hes not well enough to handle anything the show might throw at him they should have assessed him and said no to him going in at all.

As it happens, I don't think he is particularly vulnerable, and I also think he clearly knew that it was Jojo and was just playing along, it was just a bit of fun. He likes her. Their sort-of-friendship that's emerging is one of the only interesting parts of the show currently.