That's not really the implication. It's from Adrian's perspective. It's psychological. Adrian saw them as soulmates.
The 'love' is twisted. Both of their minds were broken beyond repair. Like Romeo & Juliet, it's a love story where the love itself is romantic but not lasting or sane.
The balloon is probably a metaphor. It's empty, but a floating balloon is light. Letting go of a balloon is release.
So the final page with the little girls is that they have been released from their suffering.
mmm I like your interpretation better. I think it’s open enough that there can be more than one interpretation, but the vibe I got was, in large part, how like “truly in love” they tried to act like the couple was, how Lawrence literally died for Adrian, etc. It gave me the vibe of
like “they died so now they can be together in the afterlife”.
IDK. I definitely understand your interpretation and I prefer it.
i ressent the implication that they were like, soulmates and live happily together forever in the afterlife or some shit. mc is literally almost twice the age of lawrence, who is 14 - a child.