Markiplier discovers Jacksepticeye through a social media website called YouTube. Mark and Jack became best friends for quite a few years but they're slowly drifting away from each other. This is due to their busy outside worlds that they have to deal with everyday and with getting over their old relationships with others whom they've split apart with recently. But one day a very popular YouTube channel made a video based on these two which created HUGE problems between Jack and Mark's friendship.