I pretty much find all these couples boring. All of them.
I can't really knock these people for spending a lot of time on the comp or playing video games since I do those things too, but none of these people have any hobbies or friends? It seems that some of them don't even work so they're home all day with absolutely nothing to do except watch TV or sit on the comp. That's the problem. Maya/Stepan are the only couple that will have parties but they are extremely seldom. Alina used to have company over and would get drunk but hasn't really done that since moving to the new place.
None of the couples are affectionate. Specifically, none of the men are affectionate towards their women, but I don't really know who to blame for this. Last night Alina/Anton came home from a day out and he immediately jumped on his comp game for a few hours, then when they both sat and watched TV on the couch, he sat as far away from her as possible and didn't even show her an ounce of attention. Sure he was kinda douchy, but she never really complains or puts her foot down. Nora/Kiko annoy me to no end with their lack of affection. Kiko acts more like she's his sister than his girlfriend but Nora, like Alina, never really says anything about it so I blame the women just as much as the men. Keep in mind that this is coming from someone that believes that men don't necessarily have to jump on a woman just because she says "I'm horny", but this sense of dull mundane passiveness plagues all the couples, with the exception of maybe Isabel/Marcel, but they come off more like roommates that fuck a lot rather than boyfriend/girlfriend.
I'm not sure if that answered the question or not but it's the first thing that came to mind so I just went with it.