My wedding is right around the corner and almost all the details are taken care of. The only thing still up in the air is my future mother-in-law’s dress. My wedding colors are navy and burgundy, the groom and groomsmen in navy and the bridesmaids in burgundy. My mom picked a champagne colored dress about 9 months ago and my MIL loved it and started looking for her dress. She tried on a lot of navy dresses, which I wasnt a fan of becuase it matches the groomsmen. My fiancé talked her into trying on other colors and she bought a grey dress and a navy dress with plans to wear the navy one for a different event. Well, today she told us she is going to wear the navy dress to the wedding. I got upset but my fiancé thinks I'm overreacting. Is it inappropriate for me to be annoyed by this? Any opinion on this would be appreciated.
Edit: Looks like I hit the bridezilla phase - time to do some reevaluating. Thanks everyone for your input!