lwb, hugs to you. it is very tough to see your H doing this. They are being disrespectful to everyone, but like others said, at this point, to them, it does not matter.

Go cry/scream/vent, do whatever you need to do to get your anger out. My personal opinion is, if you can do it alone, not in front of H, do so. But if you really feel like you need to cry in front of H, do it once and then stop. Then start detaching. Very tough to do. Think very little steps. even smaller becuase it is the holidays. You can do it. We are all here to support you.