The head writer of the May 15 episode, Debora Cahn, talks about "Losing My Mind" in detail on the show's official writers' blog. Here are excerpts of her thoughts on the most recent Grey's Anatomy episode - the last before the season finale ...

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I had fun with this episode.

The Bailey and Tucker fight was fun. It was satisfying. It was satisfying to write a fight where there's no good guy and no bad guy and no mistake, just two people who love each other and want to make it work and can't. Because it's really friggin hard to make it work. Love, good intentions and good actions don't always help. It's just hard.

The Andre thing was really fun.

We were putting together a story about a woman who was lonely and sad, and because of her tumor, crazy, and the crazy manifested itself in her fabricating a man to be in love with. She'd have this whole big happy love affair with a man who didn't exist.

Meredith, Derek and their clinical trial patient in "Losing My Mind."

Then Shonda Rhimes walked right in the writer's room and said, "Okay, fine, she can be in love with a guy who doesn't exist, as long as he shows up at the hospital after she falls into an irreversible coma."

That's when I become filled with self-loathing.

I didn't think of him showing up and being real the whole time, and then I decide I'll leave writing and become an organic goat's milk farmer, but I'll stay long enough to write the Andre story because it'll be fun. And it was fun. And I don't really like goat's milk, it has a weird smell.

And Mark's new leaf was really fun, because I think Mark's the most satisfying character ever. He is who he is, and no matter how badly he wants to change, he can't, because he doesn't make choices, his behavior is written into his DNA, it's as honest as rain.

I enjoy him so much.

I'm a big fan of Mark Sloan. I think he takes a lot of crap from a lot of people â€" all that "he's a man whore" business. He's honest. And he's a fan of a good doink at a nice hotel. He never claims otherwise. But he seems so sweet and lost when he's trying to be all romantic and sensitive man-ish.

It just warms my heart.

Continue reading on the show's writers' blog ...

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