Complex sentence: After her freshman year roommate told her she was going to room with someone else, for her second and third years, Tadesse roomed with Trang Ho, a Vietnamese student who was well liked and doing well at Harvard, and Tadesse was obsessively fond of her.
Split into simpler sentences: After her freshman year, her roommate told her she was going to room with someone else. For her second and third years, Tadesse roomed with Trang Ho, a Vietnamese student who was well liked and doing well at Harvard, and Tadesse was obsessively fond of her.