I have a terrible and tragic theory. If we assume ML was the female friend having disguised himself and staying with her family for his safety we can then assume the need to do so was because someone or some group was after his life. And in her flashback just now when she recalls her parents murder is about the age she had the female childhood friend with her. I am then thinking her parents are killed for harboring or have harbored the ML. So indirectly ML caused all her suffering so even if he loves her he also feels he needs to take responsibility for what has happened.
Further I think what happened after their death is ML had Neighbor’s take her in and the reason they kept getting richer is ML kept sending them money to care for her, but they abandoned her instead, but kept telling him things were going great and she was happy. The ML then believes she is safe and puts off going back for her as his life is still in danger and he doesn’t want her getting killed like her parents. It’s only once he discovers what has actually happened that he goes off immediately to get her. This would also explain why nobody in the mansion is surprised by him suddenly bringing a commoner home as his wife because they are trusted allies and are aware of the danger to his life and her parents killing. The fact that they know she suffered so much protecting their master also shows why everyone is extra kind to her
FL telling her brothers about what happened : So from henceforth I will refer to the young miss as the nutcracker
Young Miss who was let in without FL’s knowledge having been standing behind the whole time, but is strangely Excitedly: Is Because I’m beautiful and elegant like the ballerina in the play?
FL looking away with eyes wide opened and a strained barely concealed panic: Errr… yeah let’s go with that
Young Miss getting even more excited: Thank you so much I’m going to brag to all my friends and family that I’m the Nutcracker!
FL panicking a little and trying to think of something on the fly: NO! No! Don’t do that!
Young Miss shocked and visibly becoming visibly crestfallen:…oh… okay…
FL: No no. Don’t cry it’s just that nicknames between best friends so be kept between us. It’s kind of like a secret we share
Young Miss perking right back up and absolutely beaming with happiness: I didn’t know we were best friends.I’m so sorry of course it will be our secret
FL letting out a sigh of relief: I’m so glad you understand
Young Miss: But then you need a nickname too. I know! Going with the Nutcracker theme I’ll call you the Buttcracker because you kick ass
FL holding a strained smile in place while trying and failing to sound exited:….yayyyyyy
Young Miss: Oh I’m so glad you like it Buttcracker
FL:….
I’m just sitting back reading about Blanche going to her father while doing the finger steeple of evil and going “Excellent. Excellent. I see you started with a show of cuteness and appear to have brought some snacks to make him lower his guard. Now when he lowers his guard finish him with tactlessly honest little kid statements and questions











ML: What!? FL is getting married!! Investigate the Spiel’s and find me a reason to KILL! THEM! ALL!
Secretary: Okayyyy. On what grounds? We can’t just investigate them for no reason
ML: Because I said so
Secretary: that’s not really a re-
ML: I AM THE LAW!!!
Sometime later FL’s potential fiancé is chained naked upside down in the dungeon as ML unrolls a mat filled with various various torture tools on a table in front of him: Oh my god! Please have mercy! I don’t even know what I did! Was I short on my taxes? I swear it was just an oversight I’ll even pay triple!
ML picks up a scalpel and examines it as he says: You littered.
Potential Fiancé: ….I littered?
ML: We take littering VERY seriously here in the Empire
Potential Fiancé: I assure you this is unnecessary I will pay the fine
ML: Don’t be stupid I think we both know that’s just an excuse
Potential Fiancé: Then why am I here?
ML: You proposed to the FL
Potential Fiancé: Wa… was I not allowed to do that?
ML: Cut off his dick
Black Hooded executioner: Yes Sire
Potential Fiancé: NO! NOOO!!! NOOOOOOOOOOO!!!!!!!!!!!
Sometime after that
FL’s parents to the FL lead: We are so sorry honey. For some reason the Spiels rescinded their proposal, but don’t worry. We’ve already talked with the Haradias and gotten a proposal from their son for you
ML upon learning this: Find me a reason to kill all the HAradias
Secretary: But-
ML: I AM THE LAW!!!
This made me cackle
I was reminded of Sylvester Stallone when the emperor says "I AM THE LAW"