Family visit...so scary!

I just arrived to my family`s and I already "sense there´s something in the wind, that seems like tragedy´s at hand..." my mother hates the looks of bodybuilders, especially women bodybuilders.... already talked a bit about what I can eat and what not and she said "you´re on vacation" ...not understanding that I don´t want to sabotage something that is so important to me and takes so much effort... The meals are going to be a problem and my daily visits to the gym too....Am I being selfish? Should I adapt more to her life just for this week so that we preserve the harmony? or should I, for once, stand for my believes and keep on doing what I usually do? ...This is very important to me...but I want harmony with my mother and it´s "only for a week".... I want to stick to my diet, training and goals...but the most important thing now is m y mother and my relationship with her. We see each other once or twice a year so....should I make sacrifices? Which sacrifices am I willing to do? Will I feel better or worse than ifI didn´t do them?... so complicated! I´ll just go with the flow and trust my common sense.... wish me luck!