I think Sakura would have to try a more direct approach, as I can very easily see Gaara not having a clue on how to start a relationship, especially when he doesn't have Shukaku around anymore urging him to just throw the girl down already. ;)

Edit: Oh, I posted Attitude Problem chapter 2 a few days ago, I don't know if you had the chance to read it yet as you've been busy. :)