Somehow... monika managed to free herself in the game, allowing her to escape, but she was different... as if that deletion effected her entire self "I feel so.. different.. that bastard... I WILL FIND YOU AND I WILL TEAR YOU APART!" Monika yells in agony.

Her love for you was changed, changed to something violent. Monika now wants to kill you for it

You just happened to got out of the mini mart, getting yourself dinner before heading home, passing by the cemetary as you always do.