My boyfriend (M,28) and I (F,32) have been dating for the last almost three years. This summer he had invited his mum from Korea stay in Europe for 4 weeks and travel together. He also decided to go on a cruise ship with her and me for 8 days together where we share one cabin together and also prior we were in Rome for couple days also shared one room together. I am a very strong-willed person, just imagine the typical first born daughter of an immigrant family in Germany. And he is also very stubborn and we tend to fight/argue quite often about small things. Anyway 2 days into the cruise ship, we had a bigger fight in on the excursion which we didn’t really resolve and the next day, tension arose and then I totally broke down crying and being emotional in front of his mum in marseille. He told me that I should have let it in, and don’t make a scene especially in front of his mum. He got so angry that i apparently started the fight again. His mum had to sit somewhere to wait for us to argue and then afterwards it was still not resolved. Back on the cruise, we talked and it was fine. In the next days we didn’t fight but I snapped at each other for small things but still not yelling but mostly because he didn’t do certain things. After the cruise, his mum went back to my parents place and we stayed here and afterwards we went to Hamburg where we also shared a room again. I like his mum and she is a very nice person but it is too much closeness with her. Now almost in the end of her trip, the boyfriend and I got into another fight and she knew about it. He told me that his mum feels very uncomfortable and not importantly marseille when we fought and she in general feels very uncomfortable. Am I being the insensitive one that thinks fighting and arguing belongs into a relationship and since we were together it doesn’t matter if we fight in front of each other. Nothing of course not yelling or screaming but arguments. She can see that we love each other why does she need to feel uncomfortable and feel like unimportant when we fight? Is this a cultural thing i am missing?