[This content is out of date and no longer canon]

Nope! Maylene stays single in mine. I believe she ends up joining the Sinnoh Elite Four. While is not married and doesn’t have any children, she does have a niece and nephew, since Mira is her little sister in L&L. Lucian is also her uncle, so Lucian and Dahlia’s children are her cousins. Maylene is also close friends with Reggie and Candice and is an aunt figure to Tristan and Isolde – likely the equivalent of a godmother.