This is really botherring me. Especially cause I saw a comment saying that Chang Hwan shouldn't have come on the show since he knows the show is basically a baby of heart pairing where they cast young people. 

But first of all, this is not heart signal. The producers made it clear they were aiming from somethign different by making it marriage oriented.  And if you want a cast that is marriage inclined, obviously you will cast 30+ to 40+ cast. 

What I don't get is how they casted this man knowing there was no woman above 30 in the cast. Basically, no matter who he connected with on a deeper level, the age difference would always be 10+. 

Though this story line is interesting, I am really annoyed that the producers did this willingly. I can't imagine how awful Chan Hwan must feel. 

honestly, i think it was on purpose just for the plot. i feel super bad for him, i don't think they wanted everyone to match well. they probably did it for a dramatic reveal, exactly what happened