Hi Bright (((hugs))) Hope your dog has a speedy recovery :-)
As for you back on the roller coster.. I think it's very easy to get back on to when they show some normalcy. My XW's texts to me are pre-BD like. It pulls at my heart because that is the person I loved. Spins in my brain then I stop and come to the conclusion she is still very much gone. No remorse , no apologies , no care for the girls.
I think you are doing great.
Irish
M51 XW43 (38 at bd) BD1 MAY 30 2015 BD2 JUNE 25 2015 by text moved out Aug 2 2015 left both Daughters 13 and 15 (now 18-20) Her divorce Final July 26 2016 Last time she saw her kids Aug 2 2015