Seeking advise

Hi! I'm 24 (almost 25) female and there's this guy that I really really like. We been talking for months and even had sex a couple of times. The issue it's that I'm petite with a baby face. He was honest and told me that he sometimes feel uncomfortable when were out in public because I look too young, he is 31. I have always accepted th fact that I look younger than my actual age. I'm very mature and therefore I have always taken my young looking ok and accepted Though it sometimes hard at work when I have to project authority.

Now I'm self conscious about it and it bothers me to look so young because I hate that it's becoming an issue within my love life.

Any advise?