Was I wrong to slow dance with a bridesmaid (im married)?

I was a bestman at my brother’s wedding and my brother and his wife really wanted the groomsmen and bridesmaids to join them during their first slow dance as husband and wife. I thought i was being a good bestman to my brother so i did what they asked. It was just a slow dance to one song. We were not dancing close compared to the bride/groom, It was just a quick dance. My hand was on her waist and her arm was on my shoulder and our chests/stomach were not even touching.

My Wife got mad about it and said i should have told my brother no. She also got mad that the bridesmaid put her arm around my arm when we walked out after the ceremony. I thought its a normal thing that happens at weddings. Im in a tough position because the wedding already happened and there is tension in our marriage. I felt i did nothing wrong and id be apologizing for nothing but at the same time, i want to hear her out. At this point is it just best to apologize and keep the peace so we can move on from this? Any thoughts/solutions on what I should have done better? Should i have told my brother no?

also, i would never go out of my way to dance with random women on my own. I only did this because my brother asked for this, and I wanted to be a good bestman.

Was I wrong to slow dance with a bridesmaid (im married)?
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