my boyfriend and i have been together for a year and 3 months. the past 2 months i've been having trouble getting wet/staying wet and have some pain during sex sometimes even if i am wet. we have tried lube and it only helps for a short amount of time if at all. i haven't been able to last a whole round of sex in these 2 months. my boyfriend always has to finish separately. i want to have sex and i enjoy it but it's not fun anymore for me to just be in pain. i worry this will bring up problems in my relationship. any tips on how to make it work or what could be wrong with me?