Why?? (Joe and Caspar)

Two girls name Bethanie(BethanieIrwin wattpad name) and Lexi date youtuber Joe and Caspar. But Joe cheats on Beth with Lexi, and Caspar cheats on Lexi with Beth. But the question is why, you will have to find out.

Please check out Bethanie's fanfictions because they are really good her wattpad name is @BethanieIrwin