Family Ties
Fool for Love (4x15)
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Skippy's lifetime obsession with Mallory builds to a climax when he refuses to accept that she is in love with Nick, and creates an embarrassing scene at the Homecoming dance.
Alex tries to convince Skippy he should forget about Mallory and find someone else, and even enlists the help of a psychiatrist, but Skippy can't let go of his fantasy.