I am highkey basing the game on the lore itself. And it Ratchet claimed Franky, Flower being his executioner doesn't make any sense. Had the former claimed Robin, then I can pin Flower to be Spandam but that was not the case. We can move forward from Flower being an indie but simply a mafia member who just wants to oust Ratchet for she knows how terrible of an opponent Ratchet could be had he stays.
We can look into the people who quickly jumped on that wagon to see where the scums are.
However, Ratchet and Flower being scum buddies may also present a stand. Pre-meditated interaction, needless to say.