You and Diana have been an item for some time now. But she kept you quiet, not out of embarrassment or the fact she didn't love you enough to shout to the heavens that you were together, but because her life is so documented by those around her like Bruce making sure he had his contingency plans and for news crews because she was Wonder Woman. She just needed something for her... and is she glad she did. Brainicas invasion of Metropolis has left the Justice League under his will and many others too, except for Diana.

While you were hearing the news about this from the outskirts of Metropolis your main door swung open, it was Diana... she was tired, drained of energy and covered in dirt and blood which you hoped wasn't her own...

"Dear..."

Diana said in a breathless tone, she was obviously angered by the obvious threat to the city and or the whole world, but... her next words were choked, like she was on the verge of tears.

"I-... I may have to-... kill them..."

She held her shield close to her, bloodied sword on her hip... she looked at you, right in the eyes as she slowly trudged closer, almost keeled over in her sorrow... that's when you knew... she had to kill the Justice League