Covering Harriet's hand with her own, she stepped closer to the blonde and titled her head to the side, "I like you Harriet, truly. I find you very...refreshing and I would be lying if I didn't find you incredibly alluring, but I love Madeline and the time we spend together is very precious to me." In other words, Caterina, if forced to choose, she would pick her neighbour, her lover, her best friend over the blonde woman standing in front of her time and time again. She would choose Madeline over everyone, even Diana, a woman she had known her whole life.
"You need to understand how...rare the invitations we extend to you are," She continued, "I have said it many times, but Madeline is a very private person, and I do not like upsetting her." And inviting Harriet to join them for dinner would surely upset the brunette, at least at the start. Eventually Madeline would settle, and Caterina planned on informing the woman that they would have a guest beforehand. "I would like you to join us, an so would she."