Piper says herself that in group 8 she had a boyfriend called Billy Wilson, but Phoebe stole him from her. Cupid tells us the names of Piper's earlier boyfriends. We never saw them but apparently she dated Joe in college, Barry in high school, and Tim in eighth grade.

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Jeremy Burns (before the show starts)
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Mark Chao (1x04 Dead Man Dating)
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Jack (1x05 Dream Sorcerer)
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Leo Wyatt (1x10 Wicca Envy - 1x14 Secrets and Guys)
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Josh (1x15 Is There A Woogy In The House? - 1x19 Out of Sight)
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Leo Wyatt (1x21 Love Hurts - 2x06 That Old Black Magic)
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Dan Gordon (2x07 They're Everywhere - 2x17 How To Make A Quilt Out Of Americans)
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Leo Wyatt (2x16 Murphy's Luck - 5x23 Oh My Goddess)
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Seth (6x05 Love's A Witch)
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David aka Mr. Right (6x12 Prince Charmed)
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Greg (6x10 Chris-Crossed - 6x15 I Dream Of Phoebe)
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Leo Wyatt (7x08 Charmed Noir - after the show's end)
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