SERIOUSLY WTF with HIM?????
First, you are so disrespectful toward Kusakabe. Even if you don’t like him, he is Iroha’s bf and at least you should bear in mind to what extent you could do. The previous boy, whose name I couldn’t recall, acted much better than momo-chan! He was mindful of this fact and what he did was actually acceptable, unlike this ignorant childish momo-chan!
Secondly, oh yeah, you are NOT her FAMILY so move your butt out of the house RIGHT NOW!!!
You are grown-up enough to stay alone at home!!!! Welp, even if you can’t, it’s unacceptable for you to ask iroha to sleep together. You are fking bullsht. I bet your head is full of water. And what is so grossed about a couple’s intimacy???? They are COUPLES.
LASTLY, you know nothing about our so-yandere Kusakabe! Yes, he is yandere and quite extreme when it comes to matter of love, but he has never hurt iroha before. To be precise, he treasures her so much to the point that he is afraid of touching her. You don’t know how much Kusakabe changed after he went out with her. So SHUT TF Up. And be more sensible