Family Man

A male character dates a woman who has one or more kids and ends up loving the kid(s) more than their mom.

The Odd Couple

Appearances

• The Odd Couple: Season 5, episode 12, "Oscar in Love" (1974). Oscar dates a woman with two kids, and he and the kids get very attached to each other, but his relationship with their mom isn't quite as strong.
• Herman's Head: Season 2, episode 25, "Love and the Single Parent" (1993). Herman dates a single mother named Carin and gets to love her son, Brad, while his feelings for Carin quickly diminish. Eventually, Herman realizes he only wants to spend time with Brad and not Carin.
• Two Guys, a Girl and a Pizza Place: Season 2, episode 14, "Two Guys, a Girl and a Proposal" (1999). After dating Kaitlin for a month, Pete has already become very attached to her son, Michael, and when he unexpectedly meets Michael's father, he feels threatened. In order to solidify his relationship with Michael, Pete proposes to Kaitlin, but Kaitlin turns him down because it's clear he's more interested in being Michael's stepfather than her husband.