Not only does Katherine Heigl lack the sensitivity gene when it comes to her marital bliss, but she's also missing a hefty dose of gaydar. Before her Grey's Anatomy co-star T.R. Knight was sweetly outed by since-fired Isaiah Washington, Katie apparently had a big ol' schoolgirl crush on him during the first season. And in standard Heigl fashion, she simply couldn't comprehend why T.R. wasn't showering her with affection after weeks of batting her lashes and sending out ostentatious signals. As The Sun quotes Katie: