Family tensions heighten in Crime and Punishment

Part 3 of F Dostoyevsky's Crime and Punishment continues with Razumikhin waking and checking with his Dr. friend, Zossumov (?) and learning that friend Raskolnikov is still sleeping, so Raz hustles off to check in w/ Rask's mother and sister; he arrives at the hovel that Rask's sister Dunya's fiance has rented for them - a sign of his disrespect as he could have afforded better temporary lodgings for them - and finds that they'd been up for 2 hours awaiting his arrival. In any event, he feels deep remorse for his drunken monologue the previous night and apologizes profusely. He'd said a # of things, however, that disturb Dunya and her mother, among them suggesting that Rask is mentally ill and noting that he's a lot like Dunya; she doesn't deny this, but it's obviously a troubling observation. Raz keeps stumbling into dangerous areas, however, and wonders aloud why Rask gets so perturbed when the discussion around him turns to the murder of the pawnbroker; he also recalls - though he doesn't blurt this out - that Rask "pretended" to confess to this crime in a conversation w/ another mutual friend. A key element in this chapter, however, is the presumptuous letter that Luzhin, the finace, sends to Rask's mother, telling her that because of important visit he won't be able to see them until that evening - further evidence if any was needed of his graceless and egotistical behavior - and then he demands a meeting her and Dunya without Rask's presence. They're obviously being pressured to push Rask out of the picture, which of course they won't do; in fact, Rask himself has the most lucid interpretation of Dunay's impending disastrous marriage: She's doing it for his benefit, in hopes of providing financial support for the family (which Rask obviously cannot provide) and that he might even find a place for Rask in his law firm (to be fair, that's probably way too much to expect).