Han Sen wanted to jump into the sea, but the blood crystal wasp prevented him from getting close enough. He had to dodge in according to the wasp's attacks, so he wasn't able to go where he wanted to.
It did not matter what skills Han Sen used or how wickedly fast they were; the wasp only had to flap its wings to destroy any plan Han Sen devised.
Han Sen hadn't been stung yet, despite how long the wasp had been nipping at his heels. This surprised Queen.
Queen, putting herself in his boots, believed she would have been stung a long time ago.
Queen didn't think it was only his skills that let him dodge the attacks. It was more like Han Sen had the ability to predict whatever his enemies were planning. Before the blood crystal wasp showed any indication of where and when it would strike, Han Sen was already moving to dodge it.