Possible MLC WAH, and need guidance

[Atsbaby]

H has been very standoffish tonight. I continued to be polite and watch son play.

We get home and s is complaining he doesn't feel well. I'm trying to take care of him and cook dinner as well as tend to d.
H is sitting at the kitchen table with arms crossed and not helping with anything.

D gets showered and feed, and H is talking with her for a bit. S is showered but remains by the toilet. I eventually cox him to bed and try to figure out why he isn't feeling well. H eventually joins me and is very rude/quiet towards me...something is up with him.

H finally decides that s should sleep in the recliner so he can sit up...ok, but you're not here with him.

As we are sitting quietly, H says we need to talk

We go to the bedroom and he lays down, getting comfortable. Then he begins to come at me about him being a good father and how I don't think he is. I ask him to explain so I can understand. He stated that I've been saying things that I normally wouldn't, like s riding in the back of the jeep when the doors are off. I didn't understand what he meant by that and he said that s always rides up front. I about blew a gasket! I told him that was the first time I had seen s ride in the front without doors. I told him how unsafe it was. He said that he thought I knew s was riding up there....wow!