mood swings?

I think so too and the lack of communication from Kuro's part. Because from where I see it, kuro just suddenly did not do penetrative sex and stop luca's advances when he is usually more active before. And I think its hinted in the previous chapters where Luca keeps saying that Kuro needs to use his words more so Luca would know what Kuro is thinking. Kuro didnt specify that he hold back when theyre intimate because he worries for Luca but luca did not k ow that and felt neglected me think