stupidhead a proposal! could be a first for the thread 
Sounds like you dodged a nutter in the other one, everything happens for a reason that date was obviously not meant to be.
putitonthelist sounds like the ONS was right for you and that's all that matters, especially if your still smiling from it 
just I'm always honest that I have a DC, although I don't go into any details other than that initially.
As for getting out, I have a few friends who are very kind and DS goes for a sleepover so I can date. I maximise use of time, so when DS is at his dads I make the most of it.
How about coffee dates to start with on a first date, that way you can leave DC with friends for an hour?
I didn't reply to the text gutless we have planned to see each other Sunday, so will talk to him then as you can't beat a conversation at spotting if they are lying