I agree with kevinsgirl.
I think you should try to seek counseling. I don’t know why your husband is doing this, really. It’s a head scratcher. You are both newly weds I know you have mentioned, so one would think he would be so focused more than ever on his marriage, and pleasing you.
I wonder how his dad treated his mom…do you know any of that background?You can tell that his dad is the dominant one(Which is the opposite of my household, my mother was a dominant feminist) However his dad would NEVER be this (for a lack of a better word) ignorant about that. His father is a guy’s guy. A mechanic who drags race is with the guys more than his wife. His mom likes the space because her husband is overbearing. I know of one incident that at a christmas party some lady sat on his father’s lap and my MIL went nuts(in a good way) I don’t think my FIL pulled any of that stuff again. If his dad didn’t care much for his mom’s opinion, and she went along with things she didn’t like to keep peace–then he might have grown up learning this behavior. I also marvel at this woman. She is obviously not altogether happy at home, but really, it’s not your problem or your husband’s. It’s slowly becoming your husband’s business.
I would sincerely tell your husband that you are not insecure, but that this is not what YOU envisioned your marriage to be. I bascially said that I love him and I want to remove any possibly dangerous situations. Tell him your dreams of the marriage, and how you want the marriage to be the best it can be. Then, please seek counseling.
I am so sorry this is happening.

May God heal things between you two.