In hindsight, the truth concerning Silver’s circumstances seems so obvious but prior to learning about that, the little lies Mashima-sensei utilised to misdirect attention away from Silver’s situation ended up being quite effective. Silver as well, he put on a good act for the most part, and all so he could teach Gray an important lesson in realising what truly matters. Without that Gray would have still been haunted by his nightmares of Deliora. Silver may have been dead for 17 years and forced Gray into a situation he never wanted to be in, but for all intents and purposes, in the end Silver was great father to Gray, expressing the affection and love both Mika and he have for Gray through that momentary embrace which will be a lasting memory for Gray.