My girlfriend and I have been dating for over a year. I have never loved or felt this way about a girl. We have been sexually active ever since we started hooking-up and dated. She has the ring, and I like not having to use a condom. She is the first girl I have never worn a condom with though. At first I could last 15 to 20 min of intense intercourse and now I last 5 min tops. Why am I doing this? It also seems to turn her off and worries her sometimes cause it's not as long. I always get mad at myself and want to go again like I have something to prove. Am I doing this to myself? We do other activities and she and I both love it, I get her to come and orgasm (sometimes) but when we do this it turns me on so much. Could this be another reason why I go so fast?