Maybe they got into a love hotel because Yumi didn't want to be vulnerable in public? but then again there are dozens of better options, including her home (Chika's old one). Unless Yuki is crashing there because she lost her apartment? I don't know. I can't get my head around why'd they end up in a love hotel.
Unles it's that thing about Yuki failing Yumi, and Yumi just saying "fuck it, I'll have sex with him, at least he'll keep coming back for more." Then again, her expression doesn't look good at all during the previews.
If "Ittekimasu" is the hotel scene, then it would hint at Akira being her new "home" - that or she'll just tell him about the time Yuki left her for good "she said Ittekimasu but never came back". Still no idea why the love hotel if that's the case though...