So, there are so many intricacies involved.,
Starting from KM scene, it was a shocker for Kunal too, Cos she is too much in proximity, like in his house. They have defined some boundaries which are crossed, now. Ofc he too will have flashbacks...or would have thought something..
Plus Mauli is pure, which Kunal cannot deny, and Kunal has a way with kids which Mauli cannot deny..somewhere they both wish to get that quality for the kids but Cos of the boundaries, they cannot.
But whole thing redefined boundaries where the other can actually see purity and how much she does for Pari and only true bonding and pure heart can do it!
On other hand with Mauli it's gonna happen Cos she is still affected and whole coming in home was complex, so breaking point with so much proximity she had tears, she will control Ofc but still she is herself..