>visiting wife's relatives in Croatia
>apartment at the coast
>wife grew up in US and her Croatian isn't very good, so we communicate in broken English
>two of her relatives ask us if we want to join them at the beach
>sure, why not
>we get there, talk for a while
>about to go swimming
>her relatives strip into their bikinis
>lately, wife has gotten into the habit of wearing a rash guard or a T-shirt while swimming due to sensitive skin
>we head towards the sea
>one of wife's relatives gives her a puzzled look
>"aren't you gonna strip?"
>"no haha, i'm good"
>wades into the sea wearing the rashie
>the relative seems troubled by this
>the other girl just gives me a weird look
>shrug it off
>swim and talk for a while
>the relatives become visibly uncomfortable for some reason
>wife brings it up, asks if everything is ok
>one of the girls says it's incredibly weird to see someone swimming in a T-shirt
>wife explains it's not really a T-shirt, tries to explain the concept of a rashie
>her relatives just look at each other and one of them says "oooookay" and smiles awkwardly
>wife and I both perplexed, but laugh it off and change the subject
>fast forward a few days
>having some drinks on the terrace we shared with the relatives
>one of their friends comes by
>relative introduces her to me and the wife
>"ah, you're the one who swims in a T-shirt"
>wife not amused, asks why it's such a big deal
>the girl rolls eyes and changes the subject
Is this a cultural thing? We still have a week of vacation here left, and I'm wondering if we're breaking some sort of weird taboo.