MY THEORY ON NARUTO GAIDEN - REBLOG IF YOU AGREE
So, when Sauce leaves the village after said goodbye to Naruto and to Sakura (promised her he will return to see her but let’s forget that), he secretly met the team TAKA.
(Of course it is his journey of redemption and we all know he must do it alone but whatever)
Then he make a child with Karin because ya know, Sasuke is so a womanizer. With him it’s girls, girls everywhere, always trying to get their attention and take them in his bed. So he slept with Karin and fall in love with her.
But someways, Karin, his true love of course (we can see how their relationship grow up all along with the manga, yeah, there isn’t any real proof but let’s guess it…) died. Sasuke couldn’t raise this baby alone so he came back to Konoha, married Sakura for some formalities and left again. You know, Sasuke doesn’t really care about his family, it’s not important at all for him, he killed Itachi you see ? And it was not as if Naruto was going to kick his ass if he did something that bad to Sakura, because Naru loves Hinata.
Sasuke’s only true love was Karin, it’s so obvious ! Sakura just waited him like a stupid girl because he didn’t love her ! He didn’t ever say her good bye or “see you soon” ! But he loves Karin, that’s for sure ! And Sarada is a SK kid ! She wears glasses and glasses IS genetic (even if I don’t really know anything about genetic, this time I’m sure). All of this is so obvious !