So.
I have been single 3.5 years. Live alone . No complications, had a few short term relationships that frittered out , last one ended and hurt a bit so I decided I would remain single .
I've always stayed in touch with an ex colleague who always made it know they were interested (I think probably just in a fwb type way) but while I am very much single he was not , so I never
Took it further than a coffee to catch up after he left our dept - made it clear it was a friendly catch up as I missed his retirement do.
We used to work together, and we worked together very well. He was the muscle and I was the brains 
He has recently sent me a message saying he and his wife have separated, and would I like to meet up . He says they are for now remaining under the same roof but have separate living arrangements, separate lounges and bedrooms and it was a mutually amicable decision. I knew they lived quite separate lives when we worked together (you know how you chat on night shifts and so on - )
Would you agree to a date under those circs ?
I do believe him - he always respected the fact I said no to anything more than friendship because he was in a committed relationship. He flirted but never pressured me . He's a nice bloke , unsure if I'd be wanting anything to develop tbh , but he's kind and funny and attractive (if short
)
After two ridiculous dalliances online I vowed off men . Decided to get fat and old and enjoy it ! I'm 50 , he's mid 50s .
Our paths don't cross now we don't work together so it won't be awkward either way .
I suspect he wants something casual .
I dont want to dent my already shite confidence , I've put weight on with HRT , the thought of a date is nice , but I dont want to do anything immoral or lead him on either , as I aren't certain about any of this.
Wwyd.