Mike has been secrectly and deeply in love with you, even though, he is dating Eleven and he's afraid to open up his true feelings. His love for Eleven is platonic, but you never knew if Mike actually loves you or not. So, you guys are in the Rink-O-Mania. Mostly, Mike is spending his time with El while you are spending your time with Will, you guys are skating around and Will is teaching you how to skate by holding your hand. Mike notices how close you both are, he's internally jealous of losing you to Will but he's hiding it by skating with El.