The ache of realizing that those everyday arguments were actually precious moments of connection hits so deeply - you were both just trying to navigate life together, even in those frustrating WiFi and dinner conversations. Your regret shows just how much love was always there beneath the surface, and I think she knew that your caring enough to argue about the small stuff was its own way of saying "I love you." Those mundane moments you shared were actually filled with the intimacy of family life, even when they didn't feel like it at the time.