No more Sex.

It's kinda sad if you can't connect with your partner making love.

They do it because they love each other, what's the problem in that?
They normally share a lot of personal things when doing it, that wouldn't be able to tell in other way.

You say they don't even talk, but this time Igen even spoke about his feelings of lose about his family. And the reassurement that Kassan give him about don't wanting to leave is very important too.

I don't think you are understanding the plotline or even those characters.

Maybe I am not. I would need to re-read the entire manga anyway to really keep up with the characters and the feelings.

I understand what you mean by the fact that they couldn't be able to tell each other things in another way... But isn't that a problem?.... True they are speaking about their feelings, this time during sex. But I still think they rely on sex way too much to 'discuss' their issues instead of really communicating. I mean Igen does that a lot.

There is a looot of things that haven't been said and resolved in the manga that are extremely important for him and their equilibrium as a couple (the last sex talk was only one of them)

And I also think they have nothing in common. Which is not a problem to love someone, but here we are seeing pationate love all the time. Like still in the Romeo and Juliette mood. There show rarely in the manga a moment where they actually share other moments, where they really get to know what motivates the other or what are their opinions and views (outside of sex). [While, we see that a lot with the king and Igen]

Every-time they start to stabilize as a couple, somethings happens, and Igen get scared of loosing Kasan and push himself onto him (with consent now, thanks to Kasan ability to never push him away, which yes is important) but doesn't really resolve anything. Igen is still hiding everything inside. Kasan is completly ignorant of what is actually happening and just show is love through accepting Igen (which is not a bad thing).

As a reader, I would like more talk. I would like less sex-talk, less sex.

So, yes they connect through sex. My problem is that they almost ONLY connect through sex...

I don't know if you will understand what I mean by that...

"Isn't that a problem?" Not really o_o why would be?

There's a lot of couples that have a huge sex drive. If they both enjoy it and makes them happy, there's no problem at all.
Even you can say they have that in common xD and that's enough to be on a stable relationship.

Also, you are forgetting this is a war story, not a shoujo. You can't expect that his relationship develops normally because they're not in normal conditions (at least, "normal" for us). It would be unrealistic if Igen open up easily, after all the thrauma He has passed. It wouldn't be in-character. Not every story has to have a happy development. This is an Angst.

And when you say "they barely talk or do other things besides sex", you should go back a little. Just few chaptters before we were watching Igen feed Kassan, or Kassan doing Igen's hair.

they both are rather open and vocal about their feelings, and their pasts, and anyone paying attention would notice that.
Be it their love, or their fury, or the feeling of betrayal, or the feeling of having difficulty trusting the other; they have voiced all of these to each other. and to others.

and sex is just another way for couples to communicate.

Okay, well, I guess I just didn't felt that way while reading.

Maybe I should re-read again to see. :)