Complex sentence: As their parents are busy during the day, Manny and Luke have a double date with twin girls but during the date it turns out that Manny's girl has a lot in common with Luke and Luke's has a lot in common with Manny.
Split into simpler sentences: As their parents are busy during the day, Manny and Luke have a double date with twin girls. It turns out that Manny's girl has a lot in common with Luke and Luke's has a lot in common with Manny.