I'm not sure, but I think you're right. Some bible versions (or at least one) do say she was raped, but I trust the KJV the most, and that doesn't. The other language about speaking tenderly and love doesn't seem consistent with rape, either.
The NIV says:
Now Dinah, the daughter Leah had borne to Jacob, went out to visit the women of the land. When Shechem son of Hamor the Hivite, the ruler of that area, saw her, he took her and raped her. His heart was drawn to Dinah daughter of Jacob; he loved the young woman and spoke tenderly to her.
But the KJV says:
And Dinah the daughter of Leah, which she bare unto Jacob, went out to see the daughters of the land.
And when Shechem the son of Hamor the Hivite, prince of the country, saw her, he took her, and lay with her, and defiled her.
And his soul clave unto Dinah the daughter of Jacob, and he loved the damsel, and spake kindly unto the damsel.