where Yuu is explicitly trying to get Yami to watch a movie instead of going to the hotel.
They only went b/c she suggested it, then he says it'd be a waste of money not to. There's no "hey, I want to enjoy this activity with you".
ETA: also I feel like I should be clearer here. I agree w/ you that Aya enjoys the physical intimacy w/ Yuu, I just think it's coming from a psychologically unhealthy place where she's doing it b/c she feels it's how she can "bind" Yuu, but the one sidedness leaves her feeling insecure in the relationship. Which is why her daydream/complaint is the lack of proactive on his side romantic/emotional bonding - reach out your hand.
Which, we get Yuu telling Hikari/Aya/the reader how amazing he thinks Hikari is in his confession/intro to Aya/POV chapters. Where does Yuu do that for Aya?
and her friend mentioning the relationship ending is just a little foreshadowing.
It can't be foreshadowing since the readers knows the relationship is doomed by the time that chapter comes out. And also foreshadowing still needs to be rooted within the context of the story - there has to be a reason why a character makes a prediction.
Which means Maruto is trying to convey that this friend is picking it up from the Aya she's seeing in that chapter, where Aya is being down on herself (someone like me) & having impossible expectations (he's all I need).