First of all NO your not the problem, some guys that cant seem to go the distance in bed have a hard time dealing with it, they feel like a failure and there worried women see them as a failure, you need to encourage him a little bit perhaps give him some confidence boosting. Guys are very much like us woman they can be very self doubtfull and have low self esteems that can cause physcological problems. I seriously suggest flatering him to see how he responds. Good luck.

it definitely doesn't sound like you are the problem, it sounds like he may have premature ejaculation. this usually affects younger men, and is caused by a number of things, performance anxiety, excessive masturbation, hormonal imbalances, long periods of abstinence etc. there are techniques he can try to get control of it, if he is unwilling to see a doctor there are a lot of websites with information on it. i've heard that taking panadol beforehand numbs the senses a little, and they go for longer, but i don't know if its true

http://sexuality.about.com/od/anatomyresponse/ht/controlprematur.htm

Hi, I have the same problem and I think your hubby is telling the truth when he says that you are too sexy! Where do I start! Um the first thing I tried with my hubby was tring to make it last longer but that does'nt work because they seem to be even quicker. The second thing I tried was getting up in the morning and leaving some mags beside the bed, this helped a bit but I only had the chance to get any after the kids were asleep and I was usually too tired. But my best advise to you (without trying to be crude) would be to either please yourself (with your hubby) before he gets the chance to end it or to let him please you in a different way before he has the chance to end it if you know what I mean. But lets face it, it takes them hours to please us so whenyou start snuggling put on a show - don't be embarrased - he will treat you like a queen and you might get the chance of getting to a second round!