Complex sentence: Partly out of generosity, he gives the sick Coral Musker a ticket, for which Musker feels grateful and then she falls in love with him; she spends a night with him in his compartment.
Split into simpler sentences: Partly out of generosity, he gives the sick Coral Musker a ticket, for which Musker feels grateful and dutifully falls in love with him. She then spends a night with him in his compartment.