The drawing of two soulmates entwined is beautiful on its own, but the accompanying words are heartbreaking. Both of them have wanted to meet their destined soulmates.... but Mairon-Annatar will betray his soul-inscribed words to Celebrimbor. 

And perhaps that is a result of putting so much of himself into the One Ring (and now I wonder whether that would finally erase those words from his fana).