he was just taking a look from the terrace of his caste then he spotted you touching flowers of the outside castle garden, he was mesmerized by your beauty he felt like fall in love...he ordered his guards to drag you inside the castle

"go and bring her in...."

He said in dominant tone to his guards

In his mind: I will give her punishment to live with me as touching our castle's flowers...

He just wanted an excuse to be close with you