To the OP:
It doesn’t have anything with seeing you without makeup or in a bad hair day, it has to do only with the obstacles in his head and the quality of your communication. Maybe he got scared to plunge in a marriage so quickly (men can be very immature at 27) and that’s why he mentioned his 30th anniversary; maybe he tries to conciliate in his mind what he was taught at home and his wish to be with you, or maybe he has really a very low sex drive. Either way, it’s unhealthy to live together, because mental blockages develop, he will bury any trace of desire towards you and you will lose your self-esteem (to ask your girlfriend to wait 3 years until you will be 30 is insulting per se!). I totally second what etc2000 and Dameedna said on page 3. Try to talk to him, explain your position and find out what he has in mind, then move out, or ask him to move out. In any case, if he asks you to continue to live together, hoping that after 3 years your marriage will change everything, he’s deeply wrong, and I hope you won’t believe this either, because it’s an illusion.