Author, I just had an epiphany and thought of this, if Tsubasa had been watching Adam all this time, did she see when he was killed? If she did how did she reacted and why did she not killed that vampire? I feel great for thinking of this lol.
Seems weird that he's acknowledged his crazy ex might kidnap him, but not worried that she'll do something to to the women he's with in order to eliminate her competition.