Hello there, my girlfriend and I have been dating for a year and half now and are very happy. I am a 23 year old male and she is a 22 year old healthy female. During the first year, the sex was great and we could have it often without problems. All of a sudden after the first year, she gets very sore and we can only make love once every 3 or 4 days. The type of sex we have been having hasn't changed nor has the duration. This is often a topic for fights because I like to have sex more than once a week and so does she but physically can't. I have asked her to go see her doctor but she is too shy, so I was wondering if someone could give me some ideas.
-Concerned Boyfriend