Elana Stien

 Elana Stien: The breakage indicates the door somehow had zero viscoelasticity when it hit the ground.

Detective Eddie Thawne: You're doing that thing where you're not speaking English.

Elana Stien: (at first taking it literally) What? Oh sorry. The Steel shattered like Glass. (picks of a fragment of the steel door) Oh crap. Crap, crap CRAP!

Barry Allen: Okay what's that about?

Elana Stien: It was frozen solid, like Flash-frozen...no pun intended. There's only one place I know with enough bleeding-edge tech to create a weapon like this: Star Labs. And there's only one person I know who would want to. Someone with whom I have an...unconventional history. His name is Lenard Snart. I'm not sure I'm correct in either of my suppositions.

Detective Eddie Thawne: Maybe not, but it's a good place to start.

Elana starts to walk away, Barry catches up with her.

“Hey, you okay?”

“Yeah, I guess, why?”

“I don't know it just, seems like you're in pain. Maybe you should see a doctor.”
“Not for this.” She looks Barry in the face. “Sajen, I take care to avoid getting X-rays.”

“Okay, listen you want to come over for dinner, my dad's making lasagna.”

“Appreciate the invite but I better not. Not until I figure out what exactly is going on.”

“Cool, just a thought.”

“Wait Barry. I'm sorry I don't always sense things that should be obvious, were you...”

“Just dinner, between co-workers. Wanted to get to know you a little better.”

“I'm from National City, CA. Mount Shasta originally. My mother wasn't from here.”

Barry ponders this for a moment. “Cool. Thanks, for that.”

Later that night Elana meets the Flash for the second time. Elana is clearly uncomfortable.

The Flash: (in distorted voice) Why the freaked out look on your face?

Elana Stien: 'Freaked out' is not the right word. More 'devastated' mixed with 'confused'

The Flash: What's got you so nervous? I hope you know you can trust me. Does this have anything to do with why you won't get an x-ray?

Elana Stien: No, but thank you Barry.

The Flash: (Still in disguised voice) I don't understand.

Elana Stien: You were super-interested in a weapon that could slow the Flash down. You either were the Flash, or were friends with him. You denied knowing him. But you just quoted me to myself. Besides, you called me by my name the first time we met. Beyond those I work with, there's exactly 2 people on this god-damn planet who even know my name. Well, three I suppose.

The Flash: (no distorted voice) Snart.

Elana Stien: I kept being present at his crimes, as a civilian. He high-jacked my car with me in it to hide from the cops one day. He had a gunshot wound in his ribs. I treated his wound and we literally just sat in my apartment talking for 7 hours. When the cops came, I didn't press charges.

The Flash: Why not?

Elana: Well for one thing I know a desperate man when I see one and a dangerous man when I see one, and I can recognize when the two do not overlap. I opened up to him enough to share that my mixed heritage causes some pretty severe problems with me, that I'm in constant pain and while it comes close to a lot of different pretty severe conditions humans have, there's no way to effectively treat it since it's literally the result of conflicting physiology. Also my home is a sanctuary. You're under my roof, you're safe. PERIOD.