A bell trills overhead as I push through the door of a high-end bridal boutique on Michigan Avenue.

Grace officially begins her search for the perfect wedding gown today, and my head swims with the reality that her relationship with Matteo has progressed at breakneck speed.

A year ago, my brother hit the town every night of the week with a different beautiful woman hanging off his arm. He wasn’t the least bit interested in settling down with one specific female.

He ...