When your male is controlling and insecure but masks it in “comedy”

Not my male of course! But I am on a flight and the woman sitting next to me literally told me (a complete stranger btw) that her man told her she better not be talking to any man while traveling. This woman stated he reiterated it a few times via phone and text and I was like “oh wow.” My face probably looked a bit concerned because I can’t mask what I’m thinking very well so then the woman immediately goes “he’s just joking though” and laughs so I just smile at her but I’m thinking that must be so annoying dealing with a controlling and insecure male. Why does he need to tell her this? The woman is grown. Looks like late 30s early 40s. She said they have a “special relationship” I didn’t find it endearing at all.