James Blunt, the skin-crawlingly super-sensitive 30-year-old British singer-songwriter of “Beautiful” fame, who had Oprah as good as lubricating in her seat when she joined her studio audience to watch him perform the icky “Goodbye My Lover” on her show not long ago (his first-ever trip to the US), is actually not so sensitive. To-the-manor-born actress Tara Palmer-Tomkinson, 34, who claims to have slept with Blunt not knowing he was seeing girlfriend Camilla Boler, now calls him James Cunt. Also calling him a liar and a lousy lover, she says, “Let’s just say the whole experience was small in every sense of the word.” If you know what she means.