Mary is just so precious and I love their collaboration and chemistry in working together with Kate they are like soul sisters than Alice with twin connection. I just love them so.
Why??? the girl was a walking SJW one liner machine. they took a interesting characters like Ruby Rose and made her a human form of a soap box that would make Supergirl look like it was made by republicans
This just show how complicated Kate and Mary's family relationship is. The one thing I don't understand is that Kate could've bonded with Mary,their bond would've been more like a big/little sister one not the fraternal twin bond that Kate and Beth had due to the fact that Kate is a bit older than Mary anyway. Plus if Kate told Mary about Beth,it would've made Mary want to meet her and get know her