It's normal for newly-arrived foreign nurses in a new country to feel homesick and long for the environment they're accustomed to. It's a new culture, a new way of speaking a language different from how they learned it, as well as sights and sounds, seasons and climate that is very different from what they grew up with. Having a passion for nursing or national origin has nothing to do with it, it's human nature to seek the familiar environments of home when living in a foreign land for the first time.
When I arrived in the US, I started out in a town in the Midwest where there were very few people from the Philippines. Yes, I missed the family and friends I left, the co-workers I had, and the hustle and bustle of living in Manila. Yes, I got excited when I hear Tagalog spoken whenever I was out in the mall, I lit up when a fellow Filipino recognizes me or acknowledges me as Filipino, and I sought out Asian supermarkets just so I can find ingredients to make Filipino food. In time, these feelings changed. Like me, you will also get accustomed to your new country, new friends, new co-workers, and your new way of life.
In my case, I will always be Filipino in appearance and soul but I've adapted to the lifestyle in the US and could not see myself living or working anywhere else. I live in California now and I see a lot of people from the Philippines many of whom just recently arrived. I don't envy the fact that I did not have this kind of environment when I first moved to the US because I think my personal experience of being exposed to very few Filipinos when I arrived strengthened me to adapt and brought out the person I've now become.