This is so frustrating By this point her choosing to leave him doesn't make sense The fir...

I read your comment long ago and now I read it again with an answer.. is she leaving him because she is sick and she is going to die?

Well, not my cup of tea for a reason, because she is going to die in front of other person that likes her as well.

Who knows.

She is seeing herself as a burden and a hindrance to him (because of her evil dad, her health,etc.) and assumes everything would be better for him if she were just gone

But she hasn't talked to him or asked if he thinks that at all, she's just finding reasons for her to run away again :/ which is going to create more problems

ML clearly doesn't think that way, he really cares for her alot by this point in the story and would clearly do anything to take her of her

In the end, it is always about being honest, communication...

In addition to what others commented, remember how she said to Gabriele that she cannot trust his kindness that depends on his mood anymore. Today he is a caring and loving husband but who knows if he goes back to the old behaviour if he feels like this. I wouldnt trust him either. Love does not always last forever, and knowing how he treated her when he thought he did not love her, thats a huge risk for her.

Facts

Nah but she does say she is leaving because she is causi bf him trouble after this part. She mentioned the part you are describing before she started to like him again. But the leaving for you bit is tired and doesnt make sense because the servants all make it clear the drama at that moment goes away if she just goes to the main house. Its also dumb that at this point she cant just say she hates her family and not put up with their shit. Whole thing is far fetched concocted drama.