in japanese 「一目会った時から愛してます。」is the rough translation to [i have loved you from the moment we met]. The text written in the art is english but with japanese grammar.
So, a bit late now, but I am wondering here. Could the message written in Unowns be totally backwards, meaning, from right to left AND from bottom to up?
Then it would read: "XXX I LOVE YOU SENCE I MET YOU"
With XXX probably being the trainer's hidden name.