Just as a bit of information, since people seem confused about the Cupid and the Soulmates:
The Cupid and the Soulmates are not related. The two people targeted by the Cupid become lovers, not Soulmates.
Soulmates are actual roles handed out at the start of the game. They only know about each other, nothing more. Since their role is Soulmate, they cannot also be a Werewolf, though one can still be bitten by the Alpha, without the other knowing. If one were to die, the other one lives on.
Lovers are appointed by the cupid, and are on top of their normal roles. It's possible that a lover is also a werewolf.
The cupid has to pick two lovers during the first night. Only if one of the lovers dies that same night will Cupid fail and have to repick during the next night. Since nobody died during the first night, the love couple was established. Even if the love couple died at a later time, Cupid does not get to pick a new couple, so there's only a single couple in the entire game.
Cupid is not related to the lovers in any way. (S)he just picks them, that's all (assuming (s)he doesn't pick him/herself as one).