Responses
You are correct. I think the wife found out why Dojun started the business and thats why they divorced
Yo so indirectly Heeso was responsible for the divorce.
I have no idea it was on Dojun's wedding.. thanks!
I was re-reading Heeso-Dojun chapters, and I might be reaching to Atlantis but I think it was vaguely stated that Dojun's interest in Heeso (since he is a beta) was the reason behind his bussiness. Also in the same chapter when Heeso's dad tells him to said something to Dojun and it was "Congratulations" that happened in Dojun's wedding.
(I tried to post this earlier when I wasn't logged in but couldn't)