You may have recently heard that Jenna Fischer, aka Pam Beesly, said on Watch What Happens Live that, yes, she and John Krasinski, aka Jim Halpert, were kinda sorta "genuinely in love" on The Office.
IRL, Krasinski is married to Emily Blunt, and Fischer is married to Lee Kirk.
Here's Fischer's full quote:
John and I have real chemistry. There is a real part of me that is Pam, and a real part of him that is Jim, and those parts of us were genuinely in love with one another. But in real life we aren't totally Pam and totally Jim, so in real life we're not the perfect match. So it's a really complicated thing, but he was like a type of spouse that I had for a long time — he was my partner.