I don't know...

I'm personally leaning towards no right now. Mostly due to the fact that your ex only recently decided to move out of the state... or out of the city, correct? Perhaps he's trying to make a few too many changes right now - and what feels like forever to us, is nothing in time to them.

But thats mostly my opinion based on my fear of rejection from my ex... yet again. And all the hurt I've gone through - and am now trying to avoid.

What do you want to achieve from the letter?
How do you think he will see it?
What response do you expect vs do you want?

Hugs!