Just a stupid doodle before bed.
So the Mirror of Eridan is like, the opposite of the Mirror of Erised.
Instead of showing you with your greatest desire (E.G. your dead parents, the Quidditch world cup, making out with Felicia Day) it shows you with Eridan.
And he keeps making awkward conversation and ignoring your body language and finding stupid reasons to touch your hands.
Some people have used the Mirror of Eridan as a form of torture.