
If you can go on Tiktok to see teasers from the next chapters, some fans already made teasers for chapters 85 to 87 ! I have even found a full english translation (inoffical) that is scrowled down and you can read the whole chapter with your own eyes. ;-)
Because to be honnest I am not sure the earring was placed there on purpose or rather by mistake. But it shows SOMEONE entered Cirrus room in his absence and ... Cirrus thinks he already knows who ..... So he is gonna check on the CCTV he installed a while ago. That's what chapter 85 is about if you want to know the details. (Usually on Tiktok they mention it ''full chapter '' when it is total spoil so if they don't say it's just a teaser that's how i like it. I have seen the entire chapter 87 though and it is good :-)

I believe she '' enjoys toying with him'' so in a way he is a bit of a pet to her. I thought that if she is a sadomasochist she might even derive sexual arousal from all the mess they are creating together x-) because of intellectual satisfaction and the need for stress relief lol aren't they great at mindgames ! I mean she is quite insane herself so that's a possibility. She probably doesn't ''kin him'' but that's possible wanting to mess with him so hard makes her feel lusty towards him. (Some sadists are also masochistic i believe she is and in that sense she enjoys his company very much , you know ? Life would be so dull without him.)
I thought she might have masturbated on Cirrus' bed knowing about the CCTV and finding that exciting x-) but she went even further :-D how the hell did she lured the father to go to Cirrus' bed!!!? and was everything planned? _ maybe she is getting annoyed of toying with Cirrus and now she truly wants to get rid of him. (because imagine that Cirrus' father is going to take her to America or something, then she is certain she won't be bored in the near future lol so she doesn't Cirrus anymore!) _ I can see her becoming a professionnal dominatrix that would be a healthy outcome for her lol
Why is his stepmoms earring on his bed? i think we all know