Hi Robbiegirl,
My husband has several wedding dresses, all purchased from Goodwill. He painted one red and wore it for Halloween. Another one was worn to what was called a "White Party" (everyone was suppose to wear white) for a Pride event. Not sure where (or if) he plans to wear the rest of them. No veil, just a crown for both occasions.
It's curious that someone would tell an E-bay seller "who" is going to wear the dress. If the seller is trying to get rid of an item, my opinion is they would not care who buys it or for what reason. Also, thrift stores such as Goodwill, are in the business of selling stuff. The Goodwill stores near us allows people to purchase things with a 7 day return policy. No reason to get the SA's involved in who is wearing what. Take it home and/or take it back.
So.... it sounds like you are asking if wives or SO's have a reaction to a CDer wearing a wedding dress. My reaction is: I really don't care, it's just like any other similar garment (prom dress, bridesmaid), nothing sacred as far as I'm concerned. (Other SO's may feel differently). It wasn't my dress (which neither of us would still fit into anyway, lol). If it were my dress, I prefer to keep that one in a box.