So i’ve been with my girlfriend for several months now. We are both each other’s first and the sex has been great for both of us. Even though i’m slightly below average, I am confident and able to make her finish almost every-time during sex. Recently we haven’t had sex as much (both busy) and I have masterbated a good amount of times. But now during sex I need to take a lot more breaks to continue to have sex, and when she gives me a head I can’t last more than 2 minutes. Would masturbation be a reason I can’t last like I used too?