I'd have to wholeheartedly agree with FervidPrincess! Can't imagine a woman who could resist a truly romantic man's attentions!
I was one of those "very boring" women for many years . . so uptight and had so many weird ideas about lovemaking, what was right and what was sin. It's been a real journey to loosen up and enjoy it, and now we've switched roles, sorta . . I am the one wanting it more, wishing for more! So don't give up!
The best solution is to talk about it . . NOT an easy thing for most couples, I think. But be ready to be willing to try new things if you ask her what she'd like and honestly want to know. It's very hard to have your husband tell you he wants to know how to please you, work up your courage to actually put your wishes into words and communicate them to him, and then have him refuse to follow up on your suggestions . . *sighs*
Have you tried reading any good books about lovemaking? There are a ton of them out there, naturally, but you'll have to talk it out and decide what you're BOTH willing to try, and never try to force the other into something they're not comfortable with.
*Considers carefully before saying this* It could be that she is only able to come to [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] the one way she has settled into . . it's such a difficult thing for many of us women, and once you find a way that works, you almost hate to deviate from it.
I guess one other thing: sometimes indulging in arousing influences (for example, porn) will cause dissatisfaction . . I'm not suggesting you are, it was just an afterthought. If you truly love each other, I would hope you'd eventually find a workable solution, and BOTH of you will be happier!