happy endings?

“I don’t know if this is a happy ending but here we are let loose in open fields” (190). I read this as the narrator dying and going to heaven to be with Louise, in the second sentence of the paragraph the narrator begins describing a scene which to me seemed like them dying, the walls exploding and the room growing to hold the whole world feels very dramatic death-like to me, they go on to describe open fields and being able to look dow at the whole world, giving a very heaven-like feel to the scene. If they are describing death it would mean that they would finally be with Louise again, hence why it would be a happy ending but at the same time they would have died. In the paragraph Louise is described as being paler and thinner, but still warm with bright hair, I read this as her having died and being a figment of the narrator’s imagination, particularly because it was followed by what seems to be the narrator’s death.