I'm sorry, I'm not sure I fully understand what you are saying.
Yuma is cheating on Takeda with Hotaru. The fact she doesn't have romantic feelings for Takeda doesn't change that it is infidelity.
And if Hotaru just wanted to make Yuma jealous, she could date any other boy. She doesn't have to be with someone who is violent towards her and is a complete jerk.
About the cheating, yeah that's bad for Takeda. That happens when people go into a relationship just cause there was someone who confessed to them :/ (so before being clear about their feelings first)
About Hotaru:
I think the important thing is what she said this chapter, that for true love you're willing to suffer just so the one you love can be happy.
What I think:
I think she went into a relationship with [add insulting name here] ( :P ) because she knew he had many girlfriends and she just needed a "distraction" that Yuma doesn't see her real feeling and probably puts distance between the two of them. Just when Yuma actually got a boyfriend herself her true feelings just couldn't keep up the thought that she would actually loose her chance to have Yuma for herself.
That the whole turn-around with [add the name if this horrible jerk here x.x] that their pretty much fake relationship turned into a physical one, pretty much already started with a blackmailing. The chapter were they were skiing and Hotaru seemed to have slept with him.
There was this scene were "this guy" whispered something to Hotaru and her face went a bit to the surprised-side. I think now it makes alot more sense, this horrible person blackmailed Hotaru into sleeping with him, or he would have blown up the truth to Takeda.
While I think Hotaru doesn't care about Takeda, she wanted to protect Yuma and with the "suffer for the happiness of the one you truely love" she went into this mess.
So I think Hotaru just wanted to "do the right thing" to make Yuma happy, but at the same time she totally struggled with her true feelings for Yuma which just bursted out at some point and maybe she saw the tiny chance she probably had to make Yuma turn her way and that's why she didn't stop.
I don't think this idiotic-guy will get along with what he wants, but I kinda fear that Hotaru might try to do something stupid again to protect Yuma. So I just can hope Yuma finally understands all this and start protecting Hotaru... like with beating up the "deserves to be beaten up"-guy. x.x
last edited at Jan 16, 2016 1:09PM