Nasa's knowledge is a big help to the people around him, but even he's not sure about the list Kaname finds on the internet that describes the symbolism behind different kisses.
and ended up together with an 
irreplaceable bond between them.
.وانتهى بهما المطاف بتكوين رابطة وثيقة
et dont les liens indéfectibles
ne cesseront de vous émouvoir.
e sono finite insieme, con un legame unico fra di loro.
e que permaneceu junto,
unido por laços insubstituíveis.