Is Karsi Tormund's wife or atleast the mother of his children?

[Shivani]

Quite random first thread, but as I was watching the beginning of the 15-20 minute Hardhome scene, Tormund funnily mentioned that Jon Snow was prettier than both of his daughters. The two girls Karsi put inside the boat were both ginger haired and were later seen in Episode 9: A Dance with Dragons walking hand in hand with Tormund. Another reason why I believe Karsi was Tormund's wife was that she didn't believe in Jon Snow's pledge but required reassurance from Tormund in order for the Wildlings to come to the same terms as them.