Abandoning a novel in mid-stream

Smart and impressive as it is, I'm going to bail on Sandor Marai's novel "Portraits of a Marriage." I finished the first if (I think) 3 "portraits," the novel seems to be several perspectives, each a first-person confessional narrative addressed to a silent auditor (you, the reader) about a marriage gone bad, mid-20th-century Hungary. The first from the POV of the ex-wife, and at the end of 100 pages of her account, yes, I understand the difficulties she has faced but honestly it's a pretty long slog from a modest payoff: we learn the big "secret" that led to her breakup with her husband, he has had an affection for many years for his mother's peasant-born maid, in fact at one time asked her to marry him, she refused and the family would never have approved, etc. When the wife learns of this, through some odd and melodramatic circumstances (she finds a ribbon her husband has for years been carrying and somehow makes this connection), she tells him she wants to end the marriage, they live in estrangement, then divorce, and then apparently he does marry the maid, which will be the topic of the 2nd portrait/section of the novel. There are some books that are impressive, even magisterial, but just not that pleasant to read, and this was one: I admire the assiduous quality of Marai's writing and he's taken on a serious theme with, I think, some sense of using this marriage to portray an entire society - but all told the novel just did not hold my interest and did not compel me to want to read beyond the first section.