I signed up for a couples group/meetup too. Problem is my SO is not at all interested in getting together with other couples. He is so stubborn. We have 1 couple that are great friends of ours but the wife is always out of town on business. Hard to get together to do "couple" stuff without 1 of the set. We went over for Thanksgiving and another time for a game night. We have been promised to be asked over for a RockBand night. We can't / shouldn't have them over b/c of our dog situation. The one that is kept apart would bark and cry all night if people were over. We'd have to board him or something which I guess we could do if we felt like we really needed to repay the favor of having them over.
Anyway! The Bragalots may have been nervous and just trying to impress. Not sure with not having more detail but maybe cut them a break. Have them over to your place and see if the same happens.