u/Slow_Hovercraft14

I see a lot of couples who play badminton together. In my group of 16 players we have 2 couples. We play once a week and the games are usually light hearted and fun. No one takes it serious. Until recently where one of couples have started fighting with each other on the court. To the point where last week a guy threw his racket and it broke. I wonder if it actually affects their relationship? For the other players and for myself it’s very awkward and we don’t even know what to say. What do you guys think?