REVEALED: What Drove Jason Biggs & Jenny Mollen To Splitsville!

More information is coming to light in Jason Biggs and Jenny Mollen’s split.

Last week, People reported the My Best Friend’s Girl co-stars have split and are headed for divorce after 18 years of marriage. However, a source informed the outlet it’s luckily anything but a messy split:

“They are very much connected. I have no doubt that they will remain on excellent terms.”

The pair are said to be on “great terms” and focusing on continuing to raise their two children Lazlo, 8, and Sid, 12, together.

So if everything is so cool between them, why the need to split? Well, over the weekend, an insider claimed it has something to do with a recent “ego boost” on Jason’s end.

Last year, the American Pie star told Page Six he’d recently lost 35 pounds after experiencing “some cholesterol issues.” And it may have gone to his head… An insider told DailyMail.com on Sunday:

“Jason definitely has changed since his weight loss transformation. He lost a lot of weight and it definitely helped boost his ego. I don’t think he was wanting to lose that much weight but it happened and he’s proud of the results like any one who lost 40 pounds or more would be.”

Jason Biggs weight loss — On the left, Jason in 2021 / On the right, Jason in 2026 (c) MEGA/WENN

But a new summer body wasn’t the only thing driving a “wedge” between Jason and Jenny… The insider noted “stress” from work also contributed:

“He had his first big directorial debut [with the movie Untitled Home Invasion Romance] last year, and that was a really stressful time for him. Trying to remain in the spotlight and continue to put out projects that are just as entertaining as what he was known for previously can be a difficult task. But he has this reputation and he knows that and he puts pressure on himself to do things that are going to get just as much attention.”

The insider added:

“Jason has had more stress in his life than Jenny lately and I think that’s definitely caused a bit of a wedge.”

That’s too bad! However, tension in the relationship didn’t just pop up out of nowhere. The insider noted Jason and Jenny were “truly a team” early on in their marriage but that “issues” have been growing “for a while now.” They’d apparently tried out couples therapy, which “really helped them stay in their marriage as long as they have.” But we guess it could only take them so far:

“I think if they didn’t do therapy, they would’ve split maybe two or three years ago.”

At least they tried for as long as they could! We’ve got to respect that!

The source went on to double down on the report People published that the two remain on steady terms:

“I can not see them having a nasty divorce — and I don’t see them even rushing to get a divorce. They’ve been together for so long — through all of each other’s ups and downs that their history together doesn’t get forgotten overnight. Their kids are truly their priority during this time. Jason and Jenny are still going to be very much a part of each other’s lives.”

They continued:

“They’re going to be there for each other when celebrating big milestones and special occasions, even holidays. Their split is just what’s best for them as a couple and as a family. Some people are better off as friends than as a married couple and I think they just started realizing that later on in their marriage.”

A second source tagged on:

“They are telling the truth that they are still friends. They both mutually decided that they would be better as co-parents and friends than anything else. They cherish their past, but they both know that moving on is the best for them and their kids. Once their divorce is settled, nobody believes that it will be nasty. They are going to do the best for all involved, this is actually going to be a pretty amicable breakup.”

A third added: