Justin Bieber Has FINALLY Blown It With Selena Gomez! Find Out Why She'll Never Take Him Back HERE!

With every on-again/off-again relationship, there comes a point where one party just finally says enough is enough and calls it off for good!
And we're very sorry to report, folks, that in the never-ending saga of Justin Bieber and Selena Gomez, the former Disney starlet has FINALLY become the person to do just that!
We had a feeling things were heading in this direction when we caught wind that she was complaining about his non-stop texting during an after-Grammys party, but apparently, the real reason Selenita is officially dunzo is because of those pesky Rihanna affair rumors!
But it's not that simple! Let us explain!
While she doesn't really care whether they actually hooked up or not, what bothers Selena is that she's finally come to realize that she simply CANNOT trust the Baby crooner to be faithful for her!
As an insider confirmed:

"I think Justin was hoping there would be room for a reconciliation, but there claims seem to have blown any chance of that. This situation must have made Selena feel she can't trust him. The rest of the world might think it's ludicrous that Rihanna would've hooked up with Justin, but if Selena can't be sure, how can she get back with him?"

And we think that's certainly reason enough to call this one quits before there is any more heartbreak, fights over the same thing, and endless frustration and uncertainty!
Such a shame, though!
Getting out of this kind of cyclically contentious relationship is just so difficult and painful!
It seems impossible to get over now, gurl, but eventually you'll get there!
Just stick with your friends and stay strong! You're in our thoughts!
What do U think? Are Selena and Justin done for good this time?!