So, that was one pursuit too many...don't get carried away and try to start a nice chat just because he came back to you. What happened before was a nice little interaction...which risks tipping into pressure if you continue the pursuit.
Just let him be. As for me, XH stopped contacting me as soon as our last bit of business was concluded. So maybe it's 3 months or so now? It's 2 years since I saw him, a year+ since I spoke to him by phone and more recently was just email.
My only piece of advice to you at this point is leave him be - don't initiate contact and just live your life. There is nothing to lose if you do that - truly.
Xx
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus