For several years, Catelynn Lowell and Tyler Baltierra were considered to be among the most healthy and stable of all the couples in the Teen Mom franchise.
We think it's safe to say those days are long gone.
At this point, rumors that Catelynn and Tyler are getting divorced seem to pop up about once a week.
Most blame Catelynn for allegedly shirking her parental responsibilities.
But there are other theories as well -- such as the many claims that Tyler is having an affair.
Check out the latest shocking accusations in the gallery below:
Here are Catelynn and Tyler in happier times. These days, it often seems that their relationship is one rough patch after another.
Many have laid the majority of the blame on Catelynn, alleging that she damaged her relationship with lengthy trips to rehab to treat her PTSD.
To make matters worse, Catelynn has been accused of refusing to take part in Tyler's rehabilitation process, all while expecting him to be fully supportive of hers.
It's not as though Tyler has been a perfect saint throughout his marriage, of course.
Viewers might remember the time when Tyler proclaimed he didn't "want to be married to no heifer," as Catelynn enjoyed what he considered to be an oversized lunch
But for all their many ups and downs, neither Tyler nor Catelynn has ever been credibly accused on infidelity. Until now ...
The Truth Revealed?
In an email sent to The Hollywood Gossip this week, an unidentified woman identifying herself as a production insider claims to have encountered evidence that Tyler is having an affair with a man.
The source claims to have spotted Tyler FaceTiming with his male cheating partner.
It seems unbelievable that Tyler would be so brazen as to FaceTime with his side-piece at a Teen Mom event, but we suppose stranger things have happened.
Famous Haver of Tatts
The insider goes on to claim that Tyler was FaceTiming with a "well known tatt model."
That's Twitter For You
Some of the responses to the cheating allegation were ... less than subtle.
We Can't Even
For some reason, several fans felt the need to tweet at Tyler and inform him that he's gay.
The Farrah Factor
Some fans even cited Farrah freakin' Abraham as a source -- as though she's known for being trustworthy.
Word of Caution
And some viewers attempted to call Catelynn's attention to what they believe to be Tyler's infidelities.
Our source goes on to claim that Tyler has been caught in the act by MTV cameras, but was able to convince producers not to use the footage.
The source says MTV "has hundreds of hours of filmed footage that shows the cast members in less than flattering light that could get them in deep shit, but in their contracts they have agreed to swap one 'embarrassing thing for another.'"
Not Quite Covering His Tracks
"Tyler has been caught by fans and later by his wife on GRINDR," the insider adds. "The men he was talking to posted screenshots of their conversations on Twitter."
Burying the Evidence
"Tyler at first denied the allegations but later was forced to pay off the men he was talking to, to delete everything and not speak of it again but fans still talk about it but they’ve reportedly been blocked by him on all social media," says the source.
The tipster goes on to suggest that there's some credibility to the reports about Tyler "shacking up" with an older man early in his career.
"Years ago it was proven that Tyler had a relationship with an older man who was originally thought to be a mentor/agent to him because Tyler wanted to break into the entertainment business as an actor and/or comedian but they ended up having relations," the informant writes.
On a Break
The source claims that during Tyler and Catelynn's 30-day break, "which was more like almost two months," Tyler took advantage of his newfound freedom.
The insider made several mentions of Tyler's friend River Zain Ceballos, but there is no firm indication of any romantic involvement between the two.
Thus far, Tyler has yet to speak out on the issue, but you can bet he'll eventually clear the air one way of the other.