No, there is not something "seriously wrong" with you. But odds are you are having some feelings that you are not paying attention to.
It sounds like your partner really knows how to be a great lover, but foreplay is more than just what they do in the bedroom. Are you having some feelings about other things that you are not sharing? Are you anxious about something in your life that you have not talked with him about? Are you feeling emotionally connected with him before you begin being sexual?
A big problem for many women is that we have to feel emotionally connected before we can focus on feeling sexual. When you know that he is there for you emotionally you are much more likely to be able to be fully present sexually with him.
Take time to be together in bed, alone, sharing EVERYTHING that is on your mind before you begin being sexual. For some men this is big turn off, but if you let him know that you are having some problems being able to be present sexually and that you want to feel more emotionally connected, he'll give in. This is "emotional foreplay". Share your feelings with him and encourage him to share his with you. Without the emotions sex is not much fun.
Are you angry with him about anything? Any lingering resentments? If you don't share the angry feelings with him your most tender loving feelings won't be there either. Having the emotional safety to express our most angry feelings toward each other allows us to also have the most passionate feelings toward each other.
Good luck and tell me how it goes.
