Just about my recent man

Hi! So recently me and one of friend started liking each other romantically. He never had a gf in his life and believes that only relation he wants with any girl is after marriage. We decided to move in together to UK the next year as he's going for masters and I'll be going for bachelors. But he seems so hasty to have sex whereas me being a strong moral headed person having my own beliefs that i will only lose my virginity when i get married. Most of the time he tries to persue me to get laid with him obviously ive told him no and he respected my decision always. But now i really cant assure myself of whats going to happen once we move in together. Pls advice me what to do here