Complex sentence: The Toros realize they have no choice but to learn a different routine and in desperation they employ a professional choreographer named Sparky Polastri, suggested by Torrance's boyfriend Aaron.
Split into simpler sentences: The Toros realize they have no choice but to learn a different routine. In desperation, the employ a professional choreographer named Sparky Polastri, who was suggested by Torrance's boyfriend Aaron.