Yeah, same. I didn't mind the initial push, but the writing has turned it into Becca's harem, which I think is too bad.
Which fits perfectly with what some of us think about the game, ie that it's not really a harem game, but a reverse corruption game masquerading as a harem game, in which you play the "victim" (don't feel too bad for Frank, though, he's basically the luckiest man alive

), the MC being Becca.
Which is why Frank is fighting the Abby thing as much as he can, he thinks this is the ultimate corruption (and why it makes perfect sense in the story that Becca is his biological daughter). Abby isn't the "final boss", as
Becca, not Frank, is the one fulfilling her goals (and she's got at least three, imho--one done, and the other two firmly in progress, with Abby-as-Frank's-anal-queen being a integral part of goal #3).
