I didn't get Kei's first message, though I was a friend with Hikaru, had Kei's scene, and waited until the date. I didn't have a lover either. I'm not sure why? I mean I skipped until near the date, could that be it?? EDIT: I'm not sure if it was the cheat that wouldn't allow his ending or maybe I didn't realize it was at night LOL. Figured it out.