I have to agree with Kristina.
You are going through a divorce and custody/visitation issues rife with drama and baggage, you are being trained for a new job in which your employer may or may not be aware of your upcoming divorce hearing.....
Trying to bring a relationship into it would only complicate things more.
That's just my opinion and I mean no offense.
The guy admitted he hadn't pursued you because he wasn't ready, mature, didn't want to mess things up....
I think you might be wise to be honest and say that maybe YOU aren't ready, you have some things to sort out, you need time to heal and YOU don't want to mess things up.
This isn't a random guy, it's someone you've known since you were kids.
If there really is something there, it would be better to wait until you BOTH are past being emotionally vulnerable.
I've been through a nasty divorce and I don't know you at all, but it seems to me that if someone asking you to go for a walk on the water brings you to tears because it's so romantic, you are not ready to think in terms of "relationship".
You will likely meet a lot of charming men. You will likely meet men you know in the first 15 minutes you don't want to see again.
The saying, "You have to kiss a lot of frogs....." is so true.
It just seems to me that if you are that easily melted, you need to be careful and protect your heart.
Again, just my opinion.