Yes, there will be "blowbacks, obstacles, bumps" whatever you may call them. As suggested, no expectations, and without having those expectations, those not so positive times won't be so bad, and you'll find yourself thinking of it as just another new R trying to get off the ground, if it works, great, if not, go fish, will be your mindset, and you'll be a cool customer in her eyes.
Definately cut back on the invites, let her do it. This will also be a little 'proving time' time to you as to how much interest she really has at the moment.
And last but not least, a lesson I'm finding I have to keep reminding myself. Although you are all excited about the possibility of being back together, and with due time, she may do as well, please, keep the exposure in front of the kids to a minimum. Guilty as charged. And it does send them into a bit of a flux.
Good luck, and keep on doin' what you're doin (with said adjustments) seems you're doing fine up to this point.
Me 35/XW 33 S13 & S12 M: 10/17/98 OM & S: 07/08 D final 06/09/09 12/03/09 - 06/13/10 "Piercing" 06/13/10: Engaged to Re-marry 10/17/10 06/25/10: Expecting baby #3 2/14/11