Season 1 is very cringey, but I still adored it
Stiles and Lydia don't really share many moments in season 1, but episode 11 has some really cute moments between them
Season 2, their friendship starts to grow... episode four has a really lovely moment for them in season 2. But season 3 is where it really kicks off for them, they are together quite a bit and their friendship really grows strong in that season.