It’s a Dunder Mifflin miracle!

It's been nearly three years since we last saw Pam, Jim, Michael, Dwight and the rest of our favorite on-screen co-workers together on "The Office," and we've been having some serious Scranton withdrawals ever since the series ended.

Luckily, star Jenna Fischer appeared on Bravo's Watch What Happens Live on Wednesday night to gift "Office" fans some amazing on-set secrets about her real-life relationship with John Krasinski -- aka the Jim Halpert to her Pam Beesly -- and it's guaranteed to make you swoon!

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When a fan called into Andy Cohen's late night show, she asked Fischer to dish on her on-screen chemistry with Krasinski and confess if it was real or just really, really great acting.

"Oh, Jon and I have real chemistry," Fischer answered immediately. "There's like a real part of me that is Pam and a real part of him that's Jim and those parts of us were genuinely in love with one another." Say what?!

So why couldn't these crazy kids make a relationship work in real life? (Besides the fact that they're both happily married, natch.) "In real life we aren't totally Pam and totally Jim, so in real life we're not like the perfect match -- it's a really complicated thing. But I mean, he was a type of spouse that I had for a long time, he was my partner and we'll always be close because of it."

WATCH: John Krasinski Surprises His Wife in the Most Adorable Way

Krasinski has been making heads turn with his hot new bod for the action drama, 13 Hours: The Secret Soldiers of Benghazi, and let's just say his former "Office" wife has certainly noticed his new ab-tastic physique. "It's incredible!," she exclaimed on the "WWHL" after show. "Yeah, he looks good, he looks really, really good. I've seen him in person and he looks really good."

When the 41-year-old actress was done gushing over Krasinski, she also spilled some silly secrets about the rest of her "Office" co-stars: Mindy Kaling was the one who officially messed up her lines the most and Rainn Wilson had the biggest potty mouth on set.

As for her post-office BFF? "My best friend from the office is Angela Kinsey," Fischer revealed. "We trade phone calls and texts every single day, we see each other, we have breakfast, I see her the most."