See how long they've been together. Their signatures have been kept for more than a year, which proves that your partner is a person who values friendship. Since you made the right choice, he signed a wish for his predecessor's happiness, which proved that he began to let go. And your attitude towards him depends on his decision. It's better to miss each other than to meet. Don't ruin them, because they will be together again. He will slowly let go of his predecessor.