Heart of Falsity - Byler

Five months has passed since the Vecna-attack. The Byers has moved back to Hawkins - a brand new house, the government helped to pay.
Will's concern for Mike and Eleven's relationship grows. And what will happen when he founds out about what happened between the two? How will that affect his relation with Mike?
But mostly - why does Mike start showing two sides?

Heart of Falsity takes up the problems with being in love with someone you feel like you shouldn't, but also the problems with trusting each other. What happens when falsity can't hold? When the truth is out - will it hurt? And will it change everything?