haruhito's grandpa doesn't really love misaki, just his grandpa and he asked misaki to be his lover (using the non-sexual meaning haru looked up) because he knew haruhito liked misaki and was just being stubborn and too prideful so he wanted to give him that little extra push. maybe at first he was a little delusional but after a bit he realized his infatuation was only skin deep
haruhito's grandpa doesn't really love misaki, just his grandpa and he asked misaki to be his lover (using the non-sexual meaning haru looked up) because he knew haruhito liked misaki and was just being stubborn and too prideful so he wanted to give him that little extra push. maybe at first he was a little delusional but after a bit he realized his infatuation was only skin deep