You are overthinking again. You had it here: I've only responded to the texts with short comments about my daughter like "she's really cute" or "go P go!" But you really dont have to respond at all. Depends on each situation and whether you want to keep receiving these images/videos.
When I have my kids I focus 100% on them. If they want to visit XW's dad when we are in town I will go there with them (if I feel we have time for it), but I will never sleep over there again.
Me: 34 Stbxw: 30 D:5 D:3 Mini bd: May/June 2019 Married: Aug 2019 BD: 6th Dec 2019 OM Confirmed: Feb 2020 March 2020: I filed for D Waiting for D to be finalized and W to move out end of January 2021