Well to be fair, I can definitely relate to Yuuya since he's a fellow compatriot, a military man, a mutt, and a bit brash and likes drinking. All of the above.
Just without his naivety.
Talking to a hot girl = she's falling for you is a bit too raw and realistic don't you think? lol
Some people might take a offense to that.
On topic, I think just because there wasn't any blushing doesn't mean it wasn't a meaningful conversation.
It's just a little subtle, but their both kind of clueless about the moment.
Off topic, it makes sense to find a girl you can mesh with. It makes life easier when you can both agree on things. lol