Every person when he travels abroad feels a little discomfort because the one gets accustomed to the one way of things but in the other countries it is always different. It is impossible to get rid of such feeling completely however there are some options that might make life easier.
First of all, if you bring a woman from Ukraine to the new world, you need to push her to study the language of that state. Without language she will not be able to find friends there. It is very important to have someone else for the woman except for her man because she cannot discuss everything with him. For example, you have made her a gift, she wants to share that joy with somebody, but without friend that moment of merriment will quickly evaporated and she starts being sad. However language courses will help her not only faster adapt to the country but also she might find her first buddies right there. It is enough to say that we have met most of our friends in colleges and schools. The same is with those courses.
Moreover, it is crucial to find her new hobbies at the new place, because than more a person is occupied by something than less time he or she has for thinking. If there is an opportunity, a wise man will find his girlfriend a job or at least interest group where she will find new buddies and faster socialize in a new country. OF course, even in that case homesickness might emerge.
A boyfriend must help his partner with adaptation to the society. That is why he has to be with her as much time at the beginning as he could. It is important not to leave her alone at least for the first month or two, because she needs some time to get accustomed to the new reality, but the only person in that place that she knows is her man. That husband or partner must be always a support for her so the lack of communication with him might lead to the psychological problems and depression, because every person needs someone to talk to.
One more tip is to invite her friends from time to time, especially for the first time. It is very hard to be alone in the alien culture, because even her partner, her tower of support is not the one of her kind. Sometimes that man will not understand some of her habits and thoughts and that is why she needs at least sometimes to share with it with someone of her cultural background. It will make adaptation to the world easier and less painful.
It will be also a great idea before the living together to invite her several times to the country of the groom. She will get to know with the new place before the actual life there. The most terrifying things are always those we do not know. Moreover, her future husband has to tell her about habits and traditions of his culture, because if he does not, it will be a greater cultural shock for her. For example, you can watch some films about the new country together, even better in her own language. Knowing the cultural aspects before the actual travel to another world is always helpful and that is what people in huge companies do before they send their employees to the new reality. Why not to try to do the same with the girl from Ukraine?
All in all, adaptation to the new life conditions is always a problem, because it is incredibly hard to accept something new you have never known before. Homesickness will emerge anyway, even if you have done everything like it is written in the smart books. People are creations that need communication most of all and lack of it will make a difference. That is why it is prohibited to turn her loose because the first time in the new country most of all she needs her man who will explain her everything and fill her world with colours.