We have been together for 3 years, and he originally moved in b/c his apartment burned down, otherwise we probably wouldn't be living together right now. His Mom is completely against living together before marriage and he doesn't want to continue to lie to her, so he wants to move into a place with his sister who is in the same situation with her boyfriend. I am very confused about this whole situation, and was hoping for some fresh perspective. I love him very much, and he is completely committed to me, says he wants to get married someday soon, but doesn't want to go into it lying to his Mom. What should I think/do???