Why did LeBron quit on the Cleveland Cavaliers?

Lebron really never had a great team around him the team was good but not great. LBJ had too much pressure in Cleveland and couln't handle it + never really matured. Plus can u imagine playing along your step father. That's 3*ck3d Up. LOL. There were rumors that Delonte West was dating LBJ mom or whatever you want to call it.