I know it was not the happiest chapter but I guess it's kind of complicated... >< Esp for Jun! Nino on the other hand is also lost about what he should do. It will be a challenge but I guess through talking, they'll manage to find the best solution for them!
Jun had to be 'cold'. He was a master whose sub misbehaved and it was sth 'severe' but the coldness was only to show Nino that this was out of the question, inside he was suffering.
I'm glad you liked the smexy scenes! xD
And I'm happy you liked the chapter despite being sad.

Thanks for your lovely comment Medium-chan! <3