She's obviously very concerned about Son.

  The Ex filed a motion to modify placement for Son almost 2 weeks ago, alleging that Son is suicidal because he lives here and that Son is trying to get out of a gang that he joined at the high school here.  Forty-eight hours after she filed, she and Ned went on a week-long vacation by themselves.

  She made sure to post about her vacation with Ned multiple times over the last week.  The first was on Thursday.  She uploaded two pictures, one of food and one of Ned being his typical douchey self, and wrote:
"[Name of restaurant, misspelled]
2x now we've eaten here (Who the hell cares?)
1st time we ate Steak Pesto (Refer to my previous question.)
[Ned's first & last name]...I Love You silly" (This is just the beginning of her misuse of capitalization.)

  Exactly 3 hours later, she uploaded three pictures of Ned on a sailboat and wrote:
"My Sweet Love!!! (Why Does She Type Like This?) My Captain [Ned]...relaxing on our way back in" (I don't know if I mentioned this to you guys, but Ned is into sailing.  He posted a picture of The Ex on the front of one of his boats that is a little frightening because of how closely she resembles Ursula the Sea Witch from "The Little Mermaid."  No, I'm not exaggerating because other people saw it without me saying anything.)
Her sister commented that Ned needs to shave (Which is true, because his patchy mustache is quite an eyesore and it ought to be shaved off but he keeps it for reasons which are beyond me.) and said she hoped they were having fun; The Ex replied that they were having a great time.

  One minute later, she uploaded three more pictures and wrote:
"Our sailing adventure to the Island...GREAT MEMORIES!!! [Kiss-face emoji]" (Yeah, such a great memory that you're alleging your oldest child has depression but then skip out on vacation.)
A few people commented and The Ex replied where they were vacationing.

  Three and a half hours later, she uploaded four more pictures - two of her and Ned smiling and taking a selfie, and two of her and Ned kissing in what appears to be their hotel room. (Sorry...almost lost my lunch there.)  With it, she wrote:
"I can't say enough about this wonderful man of mine!!! [Ned first & last name], you are my rock, my best friend and so much more...I am the Luckiest Woman and am so Happy I found you! (Is she of the impression that capitalizing a word somehow puts more emphasis on it?) You AMAZING to my kids. (*You're.  And what is she talking about? Half of her kids can't stand him.  Oh, wait...maybe she's only referring to HER kids.  Never mind.) You listen to my shit and so much more, (Why does she keep saying "and so much more"?  She really can't think of any other examples of what he does for her, or what he means to her, so we'll just cover it with a blanket statement of "You're blank and blank, and so much more"?) yet you still want to be with me. (That's because he hasn't realized that you're batshit crazy.) I Love You [Ned]!!!! Remember that. I'm nothing without you ❤" (You are nothing, period.  Ned is a step up from your last 18 boyfriends, but he's certainly not a catch.  Not by any stretch of the imagination.  And he certainly isn't making anyone envious of you, that's for damn sure.)

  Three days later, The Ex uploaded four pictures that she had taken on the interstate and wrote:
"[Other State] it was great to Vacation over here but I'm glad to be back in [Our State]"
Someone commented on one of the photos and asked what exciting things they had seen.  The Ex replied:
"We stayed at [City Name].  Went sailing, rented a boat and cruised around the lake.  Paddle boating. [Ned] went kayaking. We did lots of swimming, playing pool, ping pong, and lots of late night walks!!! A relaxing week.  Believe me... I needed it, we both did" (This is the 3rd vacation they've taken in the last 10 months, not counting all the times that they leave their kids with either The Ex's parents, siblings, or Son and Daughter so that the two of them can go out.  So glad they could finally get a chance to unwind. *eyeroll*)

  Three hours after that, The Ex uploaded a picture of her with a little girl and wrote:
"[Ned first & last name] and I had dinner with his sister [sister's first & last name] and her girls!!! Texas Roadhouse. [Ned's niece's name] took a picture with me." (For those of you familiar with Samsung phones, there is an option on the camera to adjust your skin tone to erase any blemishes or lines so your picture looks nicer.  The Ex has this turned all the way up to max, because every time she posts a selfie, her face looks blurry.  You can't quite tell where Ned's niece's lips end on her face because it's so blurred.)

  During all of this, The Ex had two interactions with Son whom she's alleging is depressed.  The first time, Son asked her when the court date was, she said it would be sent by mail and she would have her mom watch for it; she then asked how his first day went and he said, "Good."  The second time, Son wanted to go to his friend's cabin that was about 45 minutes from Ned's house.  Since The Ex wasn't home, Son asked his grandparents if they would take him; they told him no.  Son asked his aunt if she would take him; she told him no.  Son then called The Ex and sent her two screen shots showing how far away the cabin was, and then this conversation transpired:
     Son:  It's 33 min away (No, it's 43 minutes/33 miles.  I don't know why this kid can't use his brain)
     Son:  Soooo?
     The Ex:  It's 43 minutes...33 miles...ask [The Ex's sister] (It is a sad, sad day when The Ex is smarter than you are.)
     The Ex:  No...you can't drive

     Son:  She said no already
     Son:  Ok cool whatever (I'm sure he's "depressed" now because he can't go.)

     The Ex:  Tell grandpa to give her $10 (Everyone already said they don't want to take him, it's not about gas money.  Not to mention her sister would need to get approximately 34 mpg for $10 to be enough to run him there and come back to Tiny City.)

     Son:  No (When he acts like this with her, it's "normal." When he acts like this with us, it's "depression.")
     The Ex:  But you have to go with grandpa and grandma tomorrow

     Son:  I'm not I'm fucking stay here (Yes, he speaks to his mother like that.  He's having a temper tantrum over not getting his way, and she's telling him that he has depression because of us.)
     The Ex:  I'm sorry buddy (I don't know why she and her family call him "buddy" as if he's still in grade school.  This is so bizarre to me.)

     Son:  Yeah okay (He's pissed and doesn't care what she says.  All he cares about is that he's mad because he's not getting to do what he wanted.)

  So as you can see, Son is just acting like a jackass whenever he doesn't get his way.  He wants to be an adult but doesn't want to accept the responsibility that goes along with that.  Rather than identifying this as typical teenage boy behavior and dealing with it as such, The Ex tells him that he has depression due to living with us and because of how we treat him.  She's going to allege he has depression, but then runs off for a full week and doesn't bother checking in on him; the only time they spoke was when Son initiated both of the conversations.  Because obviously, she is just so incredibly worried about him and his well-being.