I could see that happening but I do like how Lena is around Supergirl. I would hope they keep a friendship but who knows, maybe it'll be like Clark & Lex's on Smallville.
"I'm the ultimate badass,you do NOT wanna f-ck wit me!"Hudson,Aliens

I think by season end it will be a set up with Lena and her Mom working together to set up Supergirl gain her trust. so her mom will run Cadmus from prison the can talk to anyone with that frequency voice modulator whatever it is
JP

I think it's a bit too early to put Lena on the "Evil" boat.
But that's just me.
I look forward to how they'll handle Lena.
Not every Luthor has to be irredeemably evil.
Hitler had relatives, they weren't exactly evil.
I am a man with Asperger's Syndrome, so please forgive me if my posting seems weird.

I thought she'd decided to drop her faade and step out as evil. I think she is evil now, but has plans that don't involve her mother and Cadmus.

It will be a crossed double crossed and Lena will be in cahoots with mother purposely sending her to jail to gain Supergirls trust
JP

Same here.
"I'm the ultimate badass,you do NOT wanna f-ck wit me!"Hudson,Aliens

She had me fooled too. I kept saying, "Nah, she wouldn't cross that line," in disbelief.
I had a hard time believing that she would go over to the cause so easily considering how much time she has spent trying to separate herself from Lex and her family.