Moon trine Pluto in synastry

Who will suffer the most in break up, and who would decide to leave first, even if There is no reason.

Does Pluto eventually walk away.

I thought Venus-Pluto was more key in a synastry aspect of a relationship. Who suffers in a break-up seems like a Chiron attribute to me? It's ambiguous nonetheless (a break-up and suffering), but if an astrological principle was applied I'd imagine Chiron would be key.

Thoughts?

With Love,

Hermes