wasn't this just asked?

I think for me both "from the beginning" and "during S3" would be right, because the first ever Skins episode I watched was 3x04. One Freffy scene was it for me. It was a love at first sight. I just looked at these two and thought they are made for each other. Their scene in that episode was so powerful and later my love for them only grew stronger and stronger. When I became more aware of those characters' personalities I understood why that scene seemed so strong to me: it was Effy Stonem the ice queen going after someone for the first time. It was the guy who made her feel responsibility for her actions. It was two people that could perfectly balance each other out and fit so well into each other.

3x05... they totally got me. A point of no return for me.

Freffy is the only couple that I started shipping from the first episode that I watched. Other couples needed seasons to make me their shipper, but Freffy was a beautiful exeption.