Weren't Remi & Prez dating before the whole HoriMiya things? So the latest chapter made a mistake, but I suppose the Author wanted to show how bleak our MC's there life would be, so he might have exagarated a bit.
Which group would our favorite loner be in during the trip to Kyoto? Would he be able to skip bath times?
Would our Cat Dreamer confess to Hori?
Would Hori break down under the stress of not going out with friends, since she needs to take care of her little bro?
Would her little bro still hang out with forehead flower girl?
If you bring in a "What If" chapter, at least be clear and show all the influence the characters had.