It's just a natural part of growing up, I don't think author will show things with details because it would be inappropriate, but let them try new things, that's more realistic that way in my opinion
The author could have just give us their 'married life' season where they struggle to be a married couple in SK as gay couple but no, drama isn't there. This season is weird as shit. Like this is not the Haebom and Taesung we know.
Taesung, are you an orphan? You have a mom and a dad. Ask help, you moron!