My ex will text me once a week to ask how our children are but he doesn’t ask to see them and has only seen them once in 3 months, I usually respond to his messages and just tell him they are fine and he says that’s good or ok, it never goes beyond that as I don’t ask him any questions back and He doesn’t ask anything else, and then that will be it till the next week. I respond thinking he may ask to see them so it would be wrong not to respond but he doesn’t ask but still texts once a week or so to check how they are, I feel more like he is a “pen pal” rather than a dad, he does no parenting what so ever and I haven’t had a break this entire time. He doesn’t ask to speak to them personally and they are not old enough to have their own phones. Should I just stop responding to his messages when he isn’t actually asking to see them?