Looking for a Kurtbastian fanfic

[justlookingthis.livejournal.com]

Ok, so the fanfic was title "Faking it"(? and it started with Kurt buying in a market(? When he sees Blaine who is his ex because Blaine dump him for his new boyfriend whose a chef, when Blaine asked him if he's dating anyone, Sebastian comes and introduce himself as his boyfriend, and when Blaine is gone, Sebastian told him he was watching away and feel bad and that's why he decided to help him, they decided to go out to get to know each other, and Kurt is a designer while Sebastian is an actor, the four of them go out in double dates and finally Blaine and his boyfriend get married and Kurt and Sebastian becomes a couple but Kurt found out from Sebastian's ex the reason why they broke up and Kurt goes from the hotel where the wedding was.
I remember it was in fanfiction where I read it, but I can't find it...