My younger sister got engaged 1 month before me in 2013, and my mom can't stop fussing over how wonderful HER engagement is (and I'm supposed to be her MOH). I haven't been taking it to heart because my mom has always been closer to my sister than to me, BUT.... My FMIL is SUPER excited about my upcoming wedding and has invited me to a few brial shows and has even taken me to try on dresses. We were at a show in my hometown over the weekend, and who happens upon us but my mom and sister. The entire time, my mom said nothing and just scowled at me as if to say "how dare you come here...with HER" while my sister just jabbered on and on about how many vendors were there to look at. I made the conversation as short as possible and went about my afternoon. While I am very happy to have such a great relationship with my FMIL, it does hurt a little that my own mother wouldn't think to ask me to come, especially since I'm (apparently) the "MOH", not to mention a bride as well. Any advice on how to deal with this sort of thing in case it happens in the future?