A Groom Wants To Change His Wedding-OPP

A soon to be groom is upset about the plans his future bride has made for their wedding. He wants to put his foot down but is worried about the effects.

Mike & Kate-
I can't believe I'm emailing you about OPP. And I really can't believe I'm emailing you about wedding trouble.
I got engaged this past spring and our wedding is planned for later fall. My fiance and I are both in our 30s and have been dating for 2 years. The problem I'm having with our wedding is that she wants to have a double wedding with her sister. The two sisters are super close and apparently have been planning this since they were little. Her sister got engaged last summer and hadn't set a date until we got engaged. Now they're dead set on a double wedding. All four of us saying I do at the same time. Two brides walking down the isle...etc. The sister doesn't live here in the Treasure Valley (my fiance is actually visiting her right now. That's why I wrote in) and because of that I don't know her that well. I've spent enough time with them to know that the sister is super bossy, very controlling and not anything like my fiance. She rubs me the wrong way, but because I love my fiance I deal with her. That doesn't mean I want to share my wedding with her. And her fiance and I are not best friends. We barely know each other because of the distance between us. The girls are always together but he and I rarely travel to the others' house.
The wedding plans are already in motion. It's the typical situation where the groom has very little involvement with the details. I have been trying to talk to my fiance about the double wedding and she isn't hearing me. That's why I need OPP help. Do I put my foot down and insist the weddings are separate? I worry this will make my future sister -in-law hate me and cause trouble for years to come. Her fiance isn't anyone I can get on my side about this. I honestly think he's afraid of his future bride because she's so controlling. I know guys aren't supposed to care about their weddings, but I do. I'm so in love with my fiance and want to start our lives together in a setting we both want. Do I just suck it up or do I insist that we split up the weddings?

Thanks

NOTE: You can post in the comment section below. Post directly to Facebook at Mix 106 Radio. Email mikeandkate@mix106radio.com or call 376-5106.