Around 2 years ago, I separated with my partner. A few months later I had a fling with someone I work with. It was short lived and we were still friendly, but then Covid happened and I've not seen him since. Occasionally I get an email asking how I am but that's really it. I'm cordial but quite short and not flirty.
My ex partner and I reconciled about 4 months ago. I have not told worker, but also not deliberately (when he asks how I am, I will respond with one line answers "I'm good, how about you?" etc.)
Now he has asked if I fancy a coffee. I know he's a relationship + I know he's been having a rough time (courtesy of my boss) but nothing more than that.
I'm really not very good with subtext. I am happy to have a catch up over coffee, but I'm not sure if that's what it means. Before I respond, is 'coffee' a typical euphemism for sex? Or am I massively overthinking here?