ironic beauty*

It is no wonder that Razumikhin is secretly (but not so subtly while under the influence) in love with Dunia.  Her beauty is so extreme as opposed to the normal surroundings of St. Petersburg. "She looked quite striking-- tall, wonderfully well built, strong, and self-confident in a way that expressed itself in her every gesture yet did not deprive her movements of their own characteristic softness and grace" (197). 

With being part of a poverty-stricken society, finding beauty is all but simple. Luhzin seems to have found it, however, in Dunia. Both Razumikhin and Raskolnikov aren't having that, though. Both disagree with the newly proposed Dunia/Luhzin marriage. They don't want the only sense of beauty to be lost and taken away from them (regardless of the fact that Dunia is Raskolnikov's sister). 

~kd.