First of all, I was always occupied by the Orlovich family. Gleb Nikolaevich and Nina Andreevna are very interesting people. We know not much about them, but enough to make assumptions.
Gleb Nikolaevich dominates. He is a native Muscovite, an intellectual, a researcher, a specialist in colloquial linguistics of literary criticism, and specifically in versification. Although, most likely, he is a specialist in a wide range of fields. He speaks French well, which he often uses at home. And, I suppose, this is a good acquaintance of Margarita Pavlovna. And through it I know Khobotov as well. It is Margarita Pavlovna who is important to have Orlovich's approval and understanding. Khobotov, on the other hand, is a burden on his society. Moreover, when Margarita Pavlovna breaks his poetic date with Lyudchka in the room, he directly declares that he cannot tolerate them. Although they are on the same intellectual and cultural level. Has it ever occurred to you why such dislike? Yes, sometimes he has to be there for you and even took Ludochka to their lecture (why he did it - later on). But he still weighs on them. Obviously.
I think it's all about the figure of Gleb Nikolayevich. And his...wife. Let's remember that Margarita Pavlovna in her anger called Lev Evgenyevich "a sexual maniac" and "a pavian". And who is this - a man who broke out at the word "dishonesty"? Come on...Lev Evgenyevich is not alien to the joys of the flesh, which proved his blossoming appearance after meeting with Ludochka. But something tells me that his affection and all previous relationships with ladies were exclusively platonic in nature. Including that "cocotte from the Scandinavian edition, with its sensual vicious mouth". What's the other way around? Khobotov could only meet women at work, where he was "under the hood" Margarita Pavlovna completely, who from and to control every step of his life and knew all the submarine currents and all the "cocottes" in advance. The meeting with Ludochka is a miracle, and if it wasn't for this vaccination, which I'm sure was sent by Margarita Pavlovna, Lev Evgenyevich would have been under her constant control for a long time to come.
Why would I say that? I believe that Khobotov dislikes Gleb Nikolayevich because they are not only at different levels of mental organization, he clearly knows that the real erotomaniac is Gleb Orlovich. According to the film, he is much older than his wife, and I can assume that he is married to Nina Andreyevna, who is hardly a scientist and literary critic, but rather a poetess. And the lady is very sensual, passionate and curious.
It seems to me that Gleb Nikolaevich not only married Nina Andreyevna not so long ago but also left his previous family. And he left his first family with a scandal. Do you remember what he calls Savva Ignatyevich when he meets him? That's right, "colleague". What kind of colleague can Savva Efimov be for Gleb Orlovich? None. But in life with some irony - quite. Why is it that Margarita Pavlovna actually needs the Orlovich Society? On the one hand, Gleb Orlovich, like no one else, can understand her, but she, despite all her authority of character, needs approval that she does everything right. And on the other hand, she has to show that her divorce process with her previous husband and her convergence with the new one is somewhat different from his. Remember the phrase she said when the Orlovichi were leaving and Gleb Nikolaevich tried to hide from the annoyance of Savva Ignatievich, who drank a little in a taxi?
Having clenched her two men with powerful hands-on another "high...high relationship" from Nina Andreyevna - she replied "normal for spiritual people".
That is, on the one hand, a little legalized her ambiguous departure from her husband, and on the other - won a moral victory, showing that she is not as he - and much higher level.
For all the reasons, Gleb Nikolaevich, despite his scholarship and mind, is a more...simple person. The situation with Nina Andreyevna is slightly different. She is a lady not only sensual but also extremely curious. Although the inner delicacy does not allow her to ask directly, she is interested in the sensual, erotic side of the question. She tries to visit Margarita Pavlovna for erotic revelations at the beginning of the meeting when they "powder her nose" and I think she continues to do it all the time. Naturally, Margarita Pavlovna does not share the peculiarities of her personal life, although she does not say that the tactile and bedside relationship with Khobotov has ended. Therefore, Nina Andreyevna is wavering and imagining that her secret erotic dreams come true in reality, albeit with another lady. Hence, he can't give anything but "high relations" to himself.
In order to imagine what happened to the Orlovich family afterward, you need to see the very end of the film. Savransky together with Ludochka and Khobotov ran past them on a motorcycle, and Ludochka even waved at them. They are back in a taxi, so they either go to someone to visit, or return from them. Nina Andreyevna is again at the driver's side, and it shows that despite the fact that she is younger, it is she who "rules the family" and manages her highly intellectual husband. Gleb Nikolaevich is always in a safer back seat.
Personally, I believe that this couple has lived quietly until old age because they fit each other both by nature and by temperament.