I might be...I'm reasonably recently separated and out of practice!
There is a man I know a little through work. I've had a feeling since we first met that he fancied me although up until recently I was too preoccupied with what was going on in my horrible marriage to give it much thought other than a passing 'oh you fancy me'
Recently we have talked a bit more and I realised that actually yes I do REALLY fancy him. He is quite gentle and quiet (the absolute polar opposite of my ex) and I am a classic introvert so I feel like we are doing a bit of a dance around each other. When we do talk often the conversation tails off and we are just looking into each other's eyes and then it becomes a bit awkward. And when I'm talking to other people I can see him staring at me the whole time in my peripheral vision.
I know he has children a bit older than mine but I don't know whether he has a partner. I have been waving my wedding ring free hand around like a complete lunatic 
.
Anyway last week we were talking about a gallery I had been to (absolute miles away pain to get to) and ended up emailing him the details. The other day he came and found me to say thanks and said 'We're going to go' so I thought ok...there's the wife I will bow out graciously. But then he said 'Yeah I was telling my dad about it and we're going to go'. I thought he might be indirectly trying to tell me he doesn't have a partner. Do I need you all to give me a collective head wobble or could I be onto something here?
What to do? I think a very direct approach might scare him off (and that would be so far out of my comfort zone) plus as we are in the same workplace it will be awkward if I'm totally off the mark. There is an opportunity for me to take on another responsibility at work that would mean we were in more contact.
I apologise for the long teenage post but it's been 15 years since I've had to deal with anything like this!