She was denied education in Poland occupied by Russians, and Austrians (never tried in Prussian occupied part, IIRC).

What she learnt in Poland she learnt from Polish teachers that taught Poles secretly in homes (because it was forbidden to teach some subjects - not only to woman, but to anyone - for example Polish history).

And she was always supportive of Polish independence, named Polonium after Poland, kept her name after mariage to associate with Poland. Wouldn't happen if she had problems with Poland, don't you think?

I think you project modern problems on historical situation.