Probably no one would marry me. lol
Please, please, please. Read for yourself. Or have her and her fiance read.
The awfullest thing I can imagine is feeling it’s just a duty. I’ve recommended Christopher West’s “The Good News About Sex and Marriage” many times as have other posters. In fact, the engaged couples get a copy at my parish when they first meet with the preist! Highly recommended to clear up any misunderstandings about the Church teaching and a good starting point to discuss the role sex has in a person’s marriage.