If my mom and dad approve of a guy, I run the other way. LOLSon was just meant to be a part of their family as a son-n-law because Son is already part of Son-thichai. Hahahah. Well, Son and Vill's fathers had a photo shoot with them back in the days so who knows...Vill's dad may already have eyeballed and reserved Son for Vill. Haha.
Maybe that's what happened to Vill.