>>81535353
I found the ending resonant, he loses (or lets go of) his fantasy of the one girl he couldn't let go for seemingly the majority of his life, and in the end he imagines himself an entire audience instead just to not feel forgotten in his death (which he essentially will be, in the reality of the film). He compares himself to the pig his father forgot about too, which is a nice hint of how the rest of the world is in relation to him (he essentially exists to noone).
Loved the family scene too, but I found it to be him reflecting on the similarities between how his parents' and his own final days went. There's also that one scene where he's imagining younger Jake kissing the girl in the car, and he gets freaked out by the idea that all of that is going on in the mind of himself as an old, creepy man. That scene especially really fucked with me.