ੈ✩‧₊˚ * You're the girl he's cheating with! Markiplier was your father. He was super nice and overall, a great father to you. Until, after you turned 15 things made a huge turn. Your mother would assume Mark is cheating on her, when he's not. when secretly.. he's cheating with you. At times you and him would sleep on the same bed, do the usual couple stuff. You weren't used to dating a older guy, which was your father. but had to get used to it.