I can relate to the girl, but can't understand the man

Rating: 8/10 (26 June 2017)

I heard friends' spoilers about the movie and thought the story was awful, and I thought I would be much smarter if I were in such a situation.
Recently I watched the film, and I take back my words. I can now understand why two of my friends (one girl and one guy in their late 20s) told me it was plotted in such a natural way and things looked normal in that situation.
The woman was spotted by the guy for a reason. She looked intimidated and submissive in the first few encounters. She admires him. She is attractive. These gave him the wrong impression that she can be used as his sexual slave. Hence the contract and everything that has nothing to do with love were brought into the scene at the early stage, and their relationship was based on simply sex and probably material rewards, not much to the girl's satisfaction.
She knew it was dangerous but she was also attracted to him, maybe in her heart she likes to be the submissive, to a certain extent. His pursuit has been contradictory which makes her want to know more. There were multiple times she retreated, but the sweeteners he gave (imagine how many girls have been taken onto airplane journeys by their dates), his persistent pursuit and the nearly overwhelming care have melted her. And not to forget, he did give her a romantic first night. For him, it was simply to "rectify the situation", but for her, he was the first guy she has ever wanted to have a romance with. She was led on by desire but their relationship seemed to went too far on sex but not on other aspects. I knew it will die soon.
Interestingly, despite the man had shown it clear at the beginning that he does not do romance, his feelings for her grew deeper and her refusals at certain points have wakened him up to realize he wanted to fight for her. It is not easy at all. Considering his history of being sexually abused by an older woman who even became his friend, sexual abuse was considered normal and enjoyable to him, so their conflicts are intensified as their relationship became acknowledged by people around them before themselves even knew where they were.
Overall, it was a relationship based on physical attraction later became serious and problems got intensified. I relate to this girl strongly that when a young girl is innocent, curious and loving, she would not know what it means and how it feels to be with this seemingly perfect guy without trying. When she tried to say no it was also difficult because he did not give her a break and he looked perfect by other people's eyes. On the other hand, it was a bit hard to understand the man, partly because the long abusive sexual relationship he had in his childhood. The male actor did not make the character stand out probably also because the role is hard for him to relate to.