It seemed pretty mutual for the most part... Mark does mentions not wanting to be with someone holding back his potential, and Ethan still doesn’t even know what he wants in life... every single video he’s put out since Mark started making content has been exactly like Mark’s... his “imposter syndrome” is exactly his fault because that’s all he is, an imposter. He doesn’t know what he wants so he copies Mark. That seems pretty boring to me.... no wonder Mark was being held back, where’s the room for growth? You think Ethan left Mark?? seems like Mark was tired of Ethans inability to think for himself.