Great MC, not hoarding the secret techniques.

Was not expecting this to continue after Marriage 😅

So, with the guy getting the sword-lightning technique, it's clear that the secret realm is not exclusive to fire cultivation. Why not give wifey a chance? Even if there is no suitable ice/water skill, there is always some kind of "yin flame" skill in cultivation stories. Even so, almost any skill she gains from the tablet is likely to be far more powerful than anything she learns at this "lower realm" sect. The guy that learned the sword skill was amazed at the tablet techniques, and he inherited one of the prime ancient cultivation methods of one of such sect.

Next episode.

can't he just marry both of the waifus? No regrets. One way he'll marry who saved his life before and other one who he really loves roubing. I don't see any flaws.