One day you will look back on this and have a hard time understanding why you put so much time and energy into this person. There probably won't be an answer, besides naivety.

Hopefully something good can come from this. You now have a much better understanding of what a healthy relationship should or shouldn't be. You will heal and be stronger. One day you will meet someone and be amazed at how effortless the relationship is. You will pinch yourself wondering how you found someone so wonderful. You will breathe a sigh of relief every time you have a minor disagreement and it doesn't end in screaming.

Her mental illness is not her fault, but it is her responsibility.

I don't think there's anything wrong with learning about and appreciating the culture of your ancestors. There is a big step from doing that, to holding your cultural heritage as superior to others. And of course there are many Italians who should be celebrated for their contributions to human civilization, but Columbus is not one of them.

As an Italian-American, I have never celebrated Columbus Day and I'm all for changing it to Indigenous People's Day.