Why does Raskolnikov sit listening to Marmeladov's monologue?

Raskolnikov listens to Marmeladov's monologue out of a mix of curiOSity and identification with Marmeladov's suffering. Marmeladov's Words reflect Raskolnikov's own guilt and inner turmoil, prompting Raskolnikov to confront his own thoughts and emotions. This scene ultimately serves as a moment of reflection for Raskolnikov.