Complex sentence: Her jealous boyfriend Andy thinks Pee-Wee and Simone are romantically linked and goads Pee-wee into a melee, but Pee-wee flees into a boxcar on a moving train.
Split into simpler sentences: Her jealous boyfriend Andy thinks Pee-Wee and Simone are romantically linked. Angered, Andy goads Pee-wee into a melee, but Pee-wee flees into a boxcar on a moving train.