I have read up a fair bit and still don't understand DDog.
DH WFH and DDog sleeps all day and ignores him. When someone comes home after the initial enthusiastic welcome she is all over DH, sitting oh his lap etc. I am #1 so get a very big welcome but she still needs to go be with him for a bit 🤷🏽♀️
It happens a little bit in reverse if I'm home and DH goes away.