Yea, perhaps her new costume will be super cool but I just don't like Emma in black. She wears white not only because of the title of the White Queen but also, way more importantly, it's her color and it makes her look very iconic. But now?
And no quarrels! But hell, since it's said that some things will happen between them that cannot be taken back in the very first issue of UXM I really doubt they will break up peacefully.