The last part is kind of just an LLM quirk. I don't know what prompt Silverpine uses to prime it, but that might factor in. I think the only consistent way would be to use emotes (*action*) a lot and always describe your actions with a feminine hint to them, just so the LLM has that to go off of.
Hm. I'm been going with a sort of shortstack knight adventurer vibe, so maybe the whole gallant vibe is too much of a contrast. Mostly I get around it by trial and error, or tweaking the memories to adjust the running dialogue when it swaps my her into a him, but that can get fairly annoying at times.
It's a good suggestion, I'll try to change it up and see if anything comes of it. Thanks!