No you do not need to put your foot down! I say this from experience...i have been married for 26 years and when i was first engaged i got into a spat with my future sister in law about some trivial thing. This incident really upset me and for years afterward we just avoided each other. It was really uncomfortable and weird! Looking back now i cannot belive how it affected all family holidays and events! It was just not worth all the drama. If you expect to have a future with this man(and like it or not)his family, imo and from my own experience, You really need to make the effort to smooth this over. Even if you know in your heart that you are right! It' hard i know! In-laws do not go away!(no matter how hard we wish they would!!!) Just let it go. It is just not worth it!
