Yeah, Fichel is OTP, get over it Kristin, they actually enjoy each others' company, unlike Puchel.
I cant understand Puchel shippers.
Yes Puck and Rachel had "chemistry", yes they kissed but did they not look at the context of the scene. That scene alone should tell you this couple were using each other as distractions.
In there final scene Rachel can read people like an open book so I think it is safe to say she was right on the fact that Puck joined Glee because of Quinn, and that he loves her and wants to be closer to her.
Rachel is very perceptive to everything around her. From just a few lines she was able to pick up Mr.Schue's feelings for Emma, from just one glance she(along with Finn) were able to pick up that Emma loves Will.
Rachel is very knowing to what goes on around her so I take her view as the truth when she was talking to Puck in there final scene.
You need to not just look at the chemistry between the actors.
In the Harry Potter movies Dan and Emma(Harry and Hermione) in my opinion have the best duo chemistry, but you have to put that aside for context of there scenes.
Chemistry is in the eye of the beholder, but sometimes you have to knock the idea of "oh they look cute together" and take in the context and message of the scenes the actors are placed in.