I'll start, I used to love writing. I don't do it as much anymore but still come up with ideas every now and then.
Title ideas I came up with when I thought I would try to turn it into a book of some sort [They're very corny..]:
-(The) ghost of you
-(Why can't you) Let me go
-Never to part, even in death
-I'll love you forever
Basically it was a story inspired by a movie called married to a ghost, I saw it a bit ago and liked the dynamic of a living person being able to see their dead partner in some degree while others cant. The idea was a happy couple sadly got into an accident, killing both of them but paramedics are able to revive one of them. Because of that experience, they can now see the ghost of their lover. The ghost would want their partner to live a good life and not be tied to someone they can't even touch anymore but they never wants to let go.
-For the end, the living character may take their own life after completing everything both partners wished to accomplish so they can truly pass on without any regrets or unfinished business.
-In my mind, I see the living character being similar to Hua Cheng in Tgcf with how much they love their partner and refuse to part with them. (For those who have never heard of Tgcf, Hua Cheng is a very dedicated character who waited hundreds of years to finally be with the person he loved)