The time when the past became the future [SNOWBARRY]

Part 1: The Arrival

Team Flash is at Joe's place celebrating the victory over Cicada when they hear a knock at the door.

"I'll get it" Barry says and walks over to the door and opens it "Hello can I help you?" He asks seeing a young girl standing at the door

"Yes..." She says making a step forward "dad." She says shocking everyone. After a bit Barry asks

"My daughter?" To which she nods. 

"From the future." She adds 

"What year do you come from honey?" Iris asks in a soft voice that weirds her out.

"I am from 2039 and I was born in 2022." she says

"Can you tell us more about yourself?" Caitlin asks her

"Yea! Ofcourse! So my name is Gwen Sn..." She stops for a second and says "Gwen Allen and I come from the future my father is Barry Allen and my mother... well I can't tell you about that"

"We understand, anyways what brings you here? To 20 years before your time." Cisco asks interested in the girl's story

"Well I was fighting a speedster from my time. Her name is Ava West-Thawne and she is a speedster that goes by the name of  Phase" says looking at her father. "She somehow found out my real name and she came back to three years from now and killed both of my parents..."

"So you're here to save your parents and help us defeat her?" Cisco asks after a while of processing

"Exactly" She says

The team decides to not question her any further and welcomes her in the family. What they don't know is that there's a mysterious girl watching them from the street. Eventually she leaves and everyone says goodbye and leaves shortly after. When Allens get back home Gwen decides to go and take a shower while Barry and Iris are talking
downstairs.

"Does she seem suspicious to you?" Iris asks him when Gwen is nowhere in sight.

"No, why would she?" He asks her "When Cecile was reading her emotions the only thing she felt was pure happiness and besides Caitlin will take a DNA test tomorrow and we'll see if she really is my daughter"

"Ofcourse Caitlin's gonna do it like everything else!" Iris says angry "Are you cheating on me with her or what?!

"What's wrong with you Iris? Caitlin is my best friend and she's been with me since the day I had woken up from that coma, it should be obvious that she is the one that I trust the most. If it wasn't for her I would be dead!" she says annoyed at her for making such assumptions. "And besides, Caitlin is the only one here that's capable of doing the test so she is going to do it whether you like it or not.

Iris just sighs and walks away to the bedroom. Barry is dissapointed in his wife's behaviour, and he starts thinking to himself if he really married the right girl. After a while of thinking he decides that it will be better if he stops and goes to sleep so he does just that falling asleep on the couch.

So this is going to be it for this episode.
I don't know if anyone even reads wattpad snowbarry stories anymore but I sure hope so. So what are your thoughts? Who could be that mysterious girl? Who is Gwen's mother? And who really is Ava West-Thawne?