Now I am thinking that Nico gets migraines a lot either a side effect of using his powers or just generally and Will makes sure to kiss his forehead extra to heal and to show how much he loves him.
do you ever think about it how Will could kiss somebody’s forehead to make their headache go away cause i made that up a few months ago and never forgot
So imagine that Will died on a quest and his body was somehow brought back and he was buried and this happened- Nico summoned Will's ghost using the McDonald's Happy Meal. Nico broke down completely and yelled at Will for going on that dam quest. Will then tried to comfort Nico by wrapping his arms around him, forgetting that he was a ghost. His arms went through Nico's body. They both realised the sad truth that they would never be as they were before.