There have been many pointers to prove this point...Firstly,when he first encounters Paro...he saves her from Raja Thakur's men...BSD or not,he cannot tolerate injustice...be it a man or a woman...He is also a gentleman,as he asked his men to drop the girls safely home,instead of barging them with questions...
Secondly...his relationship with Laila...she is a pretty girl too...and nothing more than time pass for Rudra,and that too out of free will,so Rudra does not force himself on her...
So i simply feel that Rudra has high trust issues,specially because of certain incidents that have left an impact upon him...Hate is the word for Paro...as that's what it will be for a while for Rudra...poor guy...till a certain point this hate won't affect him,but for how long??