Liquid Science
S06E21 My Boyfriend's Back
Allie's former flame makes a comeback in New York City to debut his off-Broadway production, which unexpectedly draws inspiration from their past relationship. To make matters worse for Allie, he seems to have shifted his affections toward Kate instead.
Season 6 Episodes
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Wedding Belle Blues
Kate Gets Dumped
Allie Doesn't Live Here Anymore
The Odd Couples
Anchor Away
Better Never Than Late
Moving On
A Tree Grows on West 56th Street
The Nearlyweds
Wanted: One Husband
What's Love Got to Do with It?
I've Got a Secret
Chip's Notes
Love Thy Neighbor
Trojan War
Loan-some Bob
The Review
The Wedding
The Last Temptation of Allie
Hockey Team
My Boyfriend's Back
What a Wonderful Episode (a.k.a. It's a Wonderful Episode a.k.a. Kate and Allie Go to Hell)