characters who don't make sense to me

I admit, one thing that bugs me about the series is the mixed signals Haru sends. Does he really think his relationship with Ren is that of normal brothers? Or does he see Ren as something more? He seems to be understanding more in recent chapters, but for a while there I was seriously confused.

I like my incest to be INCEST, not sorta-incest

I am starting to think there's something going on with the twins, tbh.