So I used to have a rule in my 20s of not dating anyone at work. Aside from that rule I was in a LTR with someone non-industry so it wasn't even really an option!! My old industry was film/TV so quite 'liberal' too.
However something I have massively noticed is that whenever you leave a job role, the men from that role contact you after and not exactly declare their undying devotion, but some really surprising ones come out of the woodworks that were always professional at work and then suddenly try their luck.
I'm guessing that's a common experience for women? Or at least women that work in less PC industries? I now work in finance and it's incredibly kosher IMO compared to the entertainment industry.
I don't really engage with any of them seriously as usually I wouldn't see myself dating them but if I fancy a little flirt I might engage. From men I currently text with, 1 is a former close colleague and 2 are former clients. I've changed industry now and won't be working anywhere near them again so no risk. I'm actually thinking about popping to some of my 'old industry' events purely to scan who is datable.
Relating to your '2 years and nothing' situation... I used to have this in my younger years and then became determined to never have 'what ifs' again.
I had a '2 years and nothing' with a very hot client once... Well, 'nothing' being us having a candlelit dinner and eating a dessert with 2 spoons at a work offsite once. Or him sending me quite personal gifts to the office. Or setting work calls at odd hours. There was a very weird crushy vibe for 2 years, thankfully we were in separate cities so no real opportunity.
Anyway, after I left, he asked me out... To a very public dressy event where all his family were present and I was his +1?! So a very, very theatrical first date, very cinderella. However, on that first date I also learned how self-centred and externally oriented he was, it was all about pictures and image.
Quickest way to get over a work crush!
I don't do 'what ifs' anymore as they'd drive me nuts, on the rare occassion that I really like someone, I follow through now.
So, question, would you entertain London office guy now that you no longer work there?