LOOSE VIRGIN???

So the guy I'm talking to Insinuated that I have a loose vagina. I got kind of offended and embarrassed because I'm a virgin how does that even happen? It's not like I can fit a whole  fist up there or barley even two fingers for That matter. I'm so embarrassed that I don't know if I'll ever have the courage to have sex with someone now. I'm 18yrs old and I want to lose it but now I'm mortified. Help? :(