
It looks like Uncle definitely remembers. I wonder what his relation was with FL. Also, thanks for the updates!
Was rereading and maybe Uncle used to be her dad / brother? It doesn't look like they're setting him up to be a past villain since he seems to be devoted to ML's good aunt, and it doesn't make sense for someone who hated FL enough to plot and kill her in her past life to be nostalgic over her musical playing. The former bodyguard theory is still there too though.
FL's abuse is very hard to read. ML is mostly green flags.