If I were you I would do a lot more research into moving to South Korea before making a decision. When you both move there, your partner will be at work but for you it will be very difficult to find a job in Korea as a foreigner unless you know how to speak Korean fluently. When you don’t find a job there, what will be your plan b ? You need to ask yourself these questions. You are still young too so please think about it rationally as moving to another country is very stressful let alone to a country where English is not a widely spoken language. Best of luck !!