Complex sentence: Simple enough but for the fact that Eric is a Beta and Larissa is an Alpha their destiny is separated by stretches of time in and out of a stasis pod with only the day that they switch places as the only time they physically see each other.
Split into simpler sentences: Simple enough but for the fact that Eric is a Beta and Larissa is an Alpha. Their destiny is separated by stretches of time in and out of a stasis pod with only the day that they switch places as the only time they physically ever see each other.