wet! lube

What is wrong with me, I have always been able to get wet and be ready for sex, always! But the last two weeks I haven't been able to. I get wet and after 5 minutes I've dried up. I love my boyfriend and I find him attractive and he knows how to turn me on. I've suggested we try lube, we haven't got around to it yet I feel like his been avoiding it hoping we won't need to, I was hoping we wouldn't need to either since I'm only young healthy and 21. And I know that there is nothing wrong with using lube it's just all the internet says it's for menopausal or pregnant women ect. I'm struggling and it's got me upset and worried to try and even have sex now 😨😭