How can my boyfriend convince his aunt to let him stay with me for my birthday?

My boyfriend and I have been together for a year and seven months now. He is nineteen and I’m going to be nineteen next months. He lives in California and I live in Iowa. I moved here almost six months ago for college. I live in my own apartment alone. My boyfriend was planning to come here for my birthday and Valentine’s Day. He asked his aunt, who he lives with, if he could come. She said no because we are not ready to be alone. I honestly think that is the worst excuse ever. Is there anything you think we can do to change her mind?