post-2x12 lena will save the day
that look on lena’s face when kara left definitely meant she’s up to something. but she’s not evil. for the first time in her life since lex, she has someone who cares about her. she has kara’s unconditional support and friendship, and supergirl risked her life to save her. lillian luthor on the other hand fucked off via her helicopter and left lena there, knowing damn well she was about to die - lena already knew her mother didn’t love her, but after this she must be 1000% sure. it would make no sense if she turned evil after all of this. no, she is up to something, but that something is to completely destroy her mother and her cause. lillian has lex’s toys, but lena is smarter than lex. she beat him at chess when she was four and she’s gonna beat him, his inventions, now. that look on lena’s face was the look of determination. we know where her loyalties lie.