Santana is a Klaine stan :p
Santana is totally a Klaine Stan from the very start.
She’s obviously close to Kurt, especially after time in New York. I bet he’s told her everything. And she goes through his stuff.
We saw so little interaction between Blaine and Santana but when we did it was obvious they liked each other. She could be snarky and bitchy with others but she wasn’t with him. Apart when she slagged off his gel and bow ties when they sang Perfect to her - but she was pissed off with everyone that day. She called Finn out for being jealous of Blaine; she got Sebastian’s confession on tape; she danced with him in Its not unusual; she jokes to Kurt that he had a fiancé when he’s chatting to Elliott.
Plus of course In GaBOF - when she basically told Adam that Kurt had been with Blaine at the non wedding, and the meaning of Come What May to them. She knew Kadam would never match up to Klaine. In All or Nothing - there’s a cut line about Kurt still being in love with Blaine and she gives him her hanky.
She’s very much in Blaine’s corner.
She’s there at the proposal, clapping and crying and had leant her support in the cut sleepover scene with Kurt, Mercedes and Rachel.
Plus there’s the rant at Kurt about his break up with Blaine (amongst other things).
And she let them crash her wedding!!! Think of that!!! Especially if you think Britanna should have had their own separate wedding. Although she said it was to please Brittany, she was pretty chuffed to walk down the aisle with Blaine and try and arrange a regular anniversary celebration.
I mean, kudos to Santana, all the best people ship Klaine.