I have long held a theory that she was in love with a republican at some point and that person either cheated on her or dumped her for another woman.
Either that, or her father was a republican and she fixated on that because she hates him.
I would bet you are correct. I once knew a Palestinian born guy who fell in love with a Jewish girl in college in the USA. She eventually dumped him for whatever reason. He has come to hate Israel. But for his comfortable business position in Europe, has said he would love to go fight and kill Jews in Israel. I think it ties directly to his devastation from her breaking up with him, as he claims to have been raised a Christian.