Responses
He did not cheat.
His father asked Lamudan to let him have a second wife and conceive an heir and he was okay with that, but Uruji still refused.
Lamudan run away because he heard Uruji talking with Lala's lover. Lala discovered that him knew Uruji and she obliged him to tell her all the marriage plan, then she escaped.
Lamudan now was aware that Uruji knew from the start that he was a man and that Lala had a lover. He thought that Uruji was playing with him, and because he loved him he couldn't stand that and got away.
For 3rd volume I can't help until August, when it'll be available in my country ahahaha
I really want to know what's happening, the raws I translate some of it via pic translation but I don't understand any of it.
some people say the seme cheated but in what I understand and observe the uke somewhat approve of it because I think seme's dad talk with uke that they need a successor?
the uke run away because of his sister, not because the seme and the second wife slept that's what i think lol, I don't understand korean so yeah, haha my head hurts （/TДT)/