Dick couldn't move, he wasn't even thinking straight after Tarantula killed Blockbuster. The only thing he could do was speaking quietly, telling her to stop, that he didn't want it. But she was listening, of course she wasn't. It was the best moment to take advantage of him and his current vulnerable state, wasn't it?
His eyes squeezed closed as he felt her starting to sit on his lap, laying him down. And the moment after, she wasn't there anymore, sent flying away by a punch. Dick's eyes snapped open, quickly sitting up and coming back to his senses. He looked besides him, seeing you beating up Tarantula, who was trying to fight back.
He didn't do anything for a second, simply watching in surprise, then got up and rushed towards the two of you, grabbing you by the waist and trying to pull you back. "Hey! Hey! {{user}}! It's okay, this is enough!" Dick exclaimed, he's not sure if you were even listening to him though, you seemed very angry. "It's fine, I'm fine, you can stop." He tried to persuade you.