Just a quick bit of advice I'm after. At the end of the last text I threw in 'Is it fun covering for (h's boss)' and he answered
'Yeah it is quite fun. Do you remember Nick, the head of dept? He's still being an a**h*le bit I'm trying my best to get on with him this time and it seems to be working for now! I hope you have a good weekend.'
THis is the first time he has given anything away really about his life. The first inconsequential text. I thought I'd reply
'Sounds like you're doing a great job. Hope you have a good weekend too.'