This could have ended another way! Her blood allows vampires to have kids. So, she could have helped the half vampire with that, and sense it's her blood her could she be able to have kids, even as a half vampire. and they could have made her a normal vampire after that. No memory wipe! But instead they made her human? WHY??? Great manga, terrible ending. I cried. :(
So, when can we read more? ;)