I shall be the one to explain it to you!Well in "Justice League"(was an animated series in i think 2009) Batman and WW flirted a lot with each other, like a lot. And on one episode, it looked like WW sacrificed herself to stop a bomb, while doing so WW crashed with the Bomb into the ground and got buried under it. Batman saw this and got scared, he ran to the bomb and started digging with his bare hands however after a few seconds Manhunter stopped him and Bats looked really sad. A few moments later WW made it out herself.While the crowd celebrated the Justice League, WW saw that Batmans hands were dirty from digging. With a smile on her face she kissed Bats which acutally made him blush and turn around.They even considered a real relationship but Batman later refused because he didnt want anyone else get hurt because they got near him.My English isnt the best but hopefully you could understand it ^^