This is what people are saying but Device said: "I’ve lived in Sweden for some time now, speaking the language, and I’m really hyped about this young and exciting NIP project. To join one of the most successful organizations, where so many legends have played, inspires me. Just see what LeBron James achieved with the Lakers for instance, and with the Major in Stockholm coming up, bringing that home to Sweden is my number one goal."
Being honest it problably has something to do with his girlfriend but it was problably a mutual decision, like... He's been living there for a good time, no reasons to believe he isn't enjoying to live there :)