John Calvin Commentary Genesis 34:3

"And his soul clave unto Dinah the daughter of Jacob, and he loved the damsel, and spake kindly unto the damsel." — Genesis 34:3 (ASV)

And his soul clave unto Dinah. Moses intimates that she was not violated so forcefully that Shechem, having once abused her, treated her with contempt, as is usual with harlots. For he loved her as a wife and did not even object to being circumcised so that he might have her. However, the fervor of lust had so prevailed that he first subjected her to disgrace.

Therefore, although he embraced Dinah with real and sincere attachment, yet, in this lack of self-control, he sinned grievously.

Shechem “spoke to the heart” of the young woman, that is, he addressed her courteously to allure her to himself with persuasive speeches: from which it follows that, when she was unwilling and resisted, he used violence against her.