Is it really that endemic that sleeping separately is the norm for married couples? Kyousuke and Yuriko don't seem to have a bad relationship, why not sleep together? Then again, apparently he's been away for 2 years, which is sort of a ridiculous timeframe even by Japanese standards. Honestly, wish that kind of justification wasn't used, Kyousuke doesn't seem the type to abandon his family for 2 friggin years.