Thanks for all of the replies, it seems the cohabit is quite normal in Europe. but confused me also, you guys not care about marriage things? just live together and it's okay even have children?I think it's a big thing if you really decide to live together with the partner, which based on the considering of marrying.and besides,I prefer to have a long-distance trip to see if it really work stay with him LOLWhy makes you have the thought I wanna marry her/him?