Will Arnett’s divorce from Amy Poehler has never been tied to a single, confirmed “big” scandalous reason; both have kept the specific causes private and relatively low‑drama in public.

What actually happened

  • Will Arnett and Amy Poehler announced their separation in 2012 after about nine years of marriage and later finalized their divorce in 2016.
  • Publicly, they framed the split as a relationship that had run its course, with reports and retrospectives often describing it as a transition from spouses to more friend‑like partners rather than a blow‑up breakup.

Did they ever explain “why”?

  • Neither Arnett nor Poehler has given a detailed, point‑by‑point explanation of “why” in interviews; instead, they have talked in general terms about how hard relationships and marriage can be.
  • Some timelines and fan “deep dives” note that by 2012 they reportedly felt more like friends and that career pressures, long working hours, and time apart may have contributed, but those are largely outside interpretations, not an official statement from them.

How is their relationship now?

  • Both have gone out of their way to emphasize that they are on good terms and are proud of how they co‑parent their two sons. Arnett has said he feels “really proud” of their co‑parenting and lucky to have Poehler as a parenting partner.
  • He has also recently pushed back on years of online gossip, saying a lot of the darker rumors about their post‑divorce dynamic are “just made up” and that people often assume drama where there isn’t any.

Recent and trending context

  • The question “will arnett divorce why” has resurfaced online partly because Arnett stars in a divorce‑themed film, Is This Thing On? , and has been doing press where his real‑life divorce with Poehler is mentioned and joked about. This has led people to Google whether the movie is secretly “about” that marriage (he treats it more as using familiar emotional territory than a literal reenactment).
  • In those newer interviews he mostly uses the chance to clarify that, despite the speculation, he and Poehler have a functional, friendly, co‑parenting relationship and that celebrity divorce narratives often get exaggerated by fans and gossip blogs.

Key takeaway

  • There is no single, confirmed public reason like cheating or some major scandal that explains “why” Will Arnett and Amy Poehler divorced.
  • What is known publicly is: a long marriage, eventual separation, a relatively private and respectful divorce process, and a strong co‑parenting relationship afterward, with both of them actively dismissing the more dramatic fan theories.

Information gathered from public forums or data available on the internet and portrayed here.