It stands for how many times the characters can switch partners and get away with it. Now, this post will contain spoilers, but given the amount of spit swapping on the show, I doubt I'm spoiling any future love connections for you.
Forgive me if I come off as 'ranty', but I have to say this is SO NOT how to write romance. At least not a romance I want to keep reading. Once they get together, the character couples spend so little time with each other it's hard to be invested in the relationship. Now, I could do this with every single one of the mc's, but I'm just going to take the boys here.
Navid Shirazi
Starts off this really dorky and cute kid who just wants to get together with his lifelong crush, Adriana.
After finally getting said lifelong crush, they break up after 4 or 5 episodes and he dates a random girl that was cast just to be the rebound. Then he goes back to Adriana after forever and a day.
Then she becomes rich and famous and a bit of a selfish beast so he cheats on her and moves on to Silver.
Silver and him are a thing for a good half a season (the longest relationship of the series.) Then she finds out he's involved in some car embezzlement scheme or something and she dumps him.
He has yet to win her heart back.
Total main character babe count: 2
Liam Court
Starts off as the sexy new guy who replaced that other guy from season one. Spends his entire debut season trying to win Naomi.
Gets her at the start of his second season. Their relationship lasts I think only 2 episodes. He sleeps with her sister and something else that happened that made them move on.
Then he has a little somethin' somethin' with Ivy... but I don't think they ever get together.
So he gets this thing for Annie. They flirt for another entire season, then kiss at the end, and then for some reason can't be together until halfway through the next season, then when they get together they last for about 4 episodes. He proposes, she says no... he sleeps with a married chick.
Then he dates some girl that showed up just so he has someone to have sex with for a few episodes. Then he breaks it off with her and has a one night stand with Silver. Which turns out to have 'meant so much more!'
Total main character babe count: 4
Dixon Wilson
Starts off as the new kid and goes right for Silver. (Apparently, she's the one who gets around on this show.) Finds out she tape recorded their sex sessions and made a movie out of them and showed it to well... just about everyone. They get past this, because she's got bi-polar disorder or something.
Then Silver boinks it off to be with Teddy for a bit, but turns out he's gay, so yeah, that didn't work.
But Dixon's moved on to be with Ivy. And they date until she sleeps with someone else when she 'meant her first' to be him. Apparently she slipped and fell on some other guy's junk.
So Dixon dates a few here and there's, until Adriana starts doing music with him and they get together. But then he goes to rehab for his drug addiction, then ditches her to go on tour.
Total main character babe count: 3
And if you didn't read the major spoilers, at least read this, because it's the whole point of this ranty post. I've gotten so used to the partner swapping that I'm not emotionally invested in the romance AT ALL. If two people are having the whole chemistry thing going on, I know it'll take a whole season for them to get together, only to have their relationship last 2 or 3 episodes before they move on.
Even if the relationship is going to blow up in their faces... MAKE ME CARE. As a reader, I want to root for them even when one or both of them are being incredibly stupid. I hate to use Twilight as a reference, but most people know the story.
Let's not get into the whole Team Jacob/Team Edward thing. Let's just look at the romance between Bella and Edward, yes?
When writing romance there's a certain 'chemistry formula'. The build-up, the happy pappy, the blow up, the resolution. (Those names are totally made up, btw) In the Twilight series, Twilight was the build-up ending with the happy pappy. The blow up was obviously New Moon when Edward skipped off. Now... here's where the romance works. The entire book I was waiting for the resolution. When will he come back?
But the resolution didn't come. Even when they got back together, there was still residue of that blow up. But the chemistry worked for me. I was still rooting for the resolution because I was invested in their romance. Because of book one.
Where 90210 (and a lot of other shows) fails at this is they have great build-up, but no happy pappy. If I don't see the happy pappy time, then why would I care if everything blows up? Because it will. I know it will. But WHY WOULD I CARE?
Even if there is crazy crap going on, you write fantasy or sci-fi or paranormal or whatever... if you have romance in your book, give those characters that moment. Build-up is important, but so is the time they actually have together. Let the reader see them happy with each other, that way if/when things blow up, we root for them to get resolved.
And there is my very long post on romance. Any thoughts?