How can you find out if someone has a fake account?

[Nya c;]

Okay, so this may be a little long :l
Theres this account named as "Cody javetic" And I am starting to gain suspicion that my friend is pretending to be him. The story:

Okay, so cody dates a lot of girls from my school, no one from there has ever seen or met him in person but my friend Kristine. (the on who i think is pretending to be him) They dated before, but broke up, cause Cody is a cheater. He only online dates. Now, I think Cody Javtic is real, but I think kristine hacked him and took over his account. Me and Kristine, and a few other friends once hacked into his account. And Kristine ended up confessing it was us, so kristine told me she had to go to cody's house with her mom. This was a long time ago though. This is when I thought cody was real, but everytime we tried to hang out with him, he would agree to come, but would never show up. So Kristine took me to his house a few times, he'd never answer the door. Till one time, we went and some guy answered. And we asked if cody was there, and he said no cody lives there(but kristine said that was his dad.) If that was the case, then why didn't she say anything? I say this was around october-december. Cody started getting off, once he stayed off his account for like 2 mnth. Then said he got grounded. When we were with Kristine, we talked to cody on the phone and his brother, But she could have set that up, right? see this is why I think cody exsists, but she is just faking being him.

Now this happened about yesterday: Cody messaged me, and he had been off for a long time again like 2-3 months, I asked, and he said he's been grounded. And the message was sent from Goodyear, so I asked him where was he at (knowing he was in Goodyear) He said his uncle's, i then said in Litchfield? he said yes. I then messaged Kristine, and it came up as Goodyear too. I asked her where she was going, she said Goodyear ball park. When I messaged them two, it Kristine would message me back like 2 mins. i thought that she was getting on and off the accounts. And today, I was looking through cody's photo's and it said the picture was uploaded from a samsung phone (kristine used to have that phone) So i'm trying to investigate, before I jump to conclusions, and today, I am going to ask her mom if she know's this cody javetic.Me and kristine were talking in about may, and she was telling me how she was going to unfriend cody cause he doesn't get on. And she said the account might be fake, and I said how, you're the only one at our school who know's him. When Kristine started dating cody in around december and october, she told him to make a accoun. So how would it be someone else then him or her? cause SHE told him to make it.

So the point why I am here is, is there any way of tracking facebook pictures to where they were posted, or if you can go on facebook and track it back to google images? Kristine once sent me a fake pic of money. and I found out, cause I went to go google it,, and the same pic came up, she confessed to using a fake pic. Also everyone knows Kristine as a huge liar, she lies about the smallest stuff. Once, she lied Cody was in her brothers room, and i went in there. And there was no one.

Is there any websites tat would help me track where this account is? cause I know where cody supposedly lives. so if it doesn't match up, then I'll know somethings up.

I apologize, this is so long. But i need answers, please.
this is cody's facebook: https://www.facebook.com/cody.javetic?fref=ts
This is Kristine's:https://www.facebook.com/kristine.sinatra?hc_location=timeline
I just talked to Kristines mom. And she said she doesn't know cody, and that they never went over to talk to cody's parents. Should I confront Kristine?

[Kittysue]

It's fake. If nobody knows or has ever even seen this guy then he doesn't exist. What guy only internet dates? Most guys want to kiss girls, not chat online with random people they will never meet
The fact her parents say they don't know him or his parents is all you need to know it's a lie
Just tell Kristine that you know she's lying and are sick of it. Say the only way you will believe she's not lying is if you can actually MEET Cody in the next few days. Say that if she can't arrange for you all to meet somewhere then you know she was faking and are going to tell everyone else