Complex sentence: Uncle Alec and he had a fall-out because they both loved the same woman, but years later George got sick and, on his deathbed, he asked Alec to take care of young Rose.
Split into simpler sentences: Uncle Alec and he had a fall-out because they both loved the same woman. Years later George got sick and, on his deathbed, he asked Alec to take care of young Rose.