Why did madam de mauban invite russendyl to the summer house?

Madam de Mauban invited Russendyl to the summer house to rekindle their past romance and to explore the possibility of reigniting their relationship. She sought companionship and emotional connection, hoping to relive the feelings they once shared. Additionally, the invitation served as a means for her to confront unresolved feelings and to seek clarity about their future together.