A German domestic drama that's honest but neither cold nor hot

Maren Ade's (had to look that up) German domestic drama Everyone Else (more accurate translation of title would be All of the Others) is really about one couple, Chris and Gitta, unmarried, not living together, maybe early 30s, on a vacation staying, as we gradually learn, in Chris's mother's vacation home on Sardinia (beautiful!, and mostly unspoiled, it seems) and about their troubled relationship, their alternating variously between verbal abuse, humiliations, worries about careers (his, mostly), physical abuse (self-abuse, mostly - Gitta jumps out of a window for example) and some playfulness (at times), sex (several times, and the only time he actually says he loves her) - in other words about a week in a very rocky and difficult relationship that seems to be heading toward dissolution; they contrast with another far more successful (and conventional) couple they run into on the island - a couple who's professional success and generally peaceful relationship with and commitment to each other (she's pregnant) brings out the worst, most passive-aggressive and then aggressive behavior in Chris and Gitta's relationship. I have to admire the movie for its honesty and its emotional scope - a whole range of emotions and attitudes in its two-hour span - but also have to say that I kept waiting for something actually to happen, something other than the relentless bickering and posing: something dramatic, some revelation, something that would move their relationship toward a conclusion or dissolution if need be. This is not Albee's Virginia Woolf nor is it a Bergman domestic drama; it's much more low-key and even civil  (it's closer maybe to a contemporary take on Antonioni). It seems to me that for a film like this to work we have to empathize with the main characters and their troubles or loathe them, and in this case it's neither, we're left like the Laodiceans - neither cold nor hot, which is maybe worst of all, for a drama anyway.