dontcall - from what I've seen on these threads, a man saying he's 'scared of the strengths of his feelings so soon' can be a bad sign, maybe an amber flag. The best way (probably) to address that is to suggest you just take it slow and see how you go, no long term commitments, you're still getting to know each other.
I've heard some men say it as a prelude to 'I'm not ready for this kind of commitment' and some say it because they're getting very emotionally invested which has a tendency of burning out, and they switch off.
Of course it could be innocent and honest, just be careful with it.
Cynical - the allocated meeting times sounds like he's fitting you round work and his kids. Not being in touch when he's away isn't necessarily a huge thing - I've just been traveling for work for the last few days and I was so knackered flying and in meetings that I really didn't have any time to check personal emails or think about being flirty via messages.. but the other stuff sounds a bit suspicious, almost businesslike. Canceling the date because your radar is pinging sounds perfectly reasonable to me.
Hello everyone else :)