Well this may sound strange to most people in this forum. But somehow I want MICHI misunderstanding to persist a little longer. The harder Mi is on Chi the more he will repent later when he comes to know the truth. Let his ex have some happiness, however temporary. Let it go up to the divorce stage and then the truth should dramatically come out. That will strenghten the MICHI bond. Eg of this are a plenty in K-serials. the more misunderstanding a couple have the stronger their bond gets once these are solved. Take Jai-Bani in KS. Their relationship has now reached a stage where whatever anybody says about one to the other, each would not believe it. Their trust in each other is so complete.
This track is way better than the frightful prospect of his ex claiming she is carrying his baby. Now that would surely ring the death knell in MICHI relationship. Chi would want to sacrifice her marriage for the baby's sake and Mi would be able to do nothing. So hope the destructives dont follow that beaten path again.