Oh, I've been waiting for this episode for so long. Not just the whole season, but I've been waiting to hear from Lydia that she began having feelings for Stiles around the time of the kiss in Season 3 for literally years. I've always known it, but to have it explicitly stated was the stuff of dreams coming true. I've truly loved the nostalgic feeling to this season and revisiting the past while still keeping Stiles present despite his absence. It's the most I've enjoyed a season since season 3 and that's probably because for the most part it's been more character-focused than action and villain driven.
The minute we heard Stiles's voice in Scott's flashbacks it was just a constant barrage of feelings for the rest of the episode. I loved revisiting so many important moments in their relationship, and I think it was good closure for Stiles and Malia's relationship as well in her memories. We know they'll always be important to each other, and they both learned a lot from their relationship, but the story of Stiles and Malia was never one they were building to as we move towards the end of the show, that's been reserved for Stiles and Lydia's relationship. I was immensely happy that they showed season 1 memories as well, it proves that Lydia stopped ignoring Stiles all the way back in season 1 even when she was pretending to be stupid to be popular. Stiles has always made an impact on her life since the beginning of the series and their development is incredible. Plus, 'Start of Time' playing again basically killed me with feels. It's shocking to be so brought back to a moment from 3 seasons ago with fresh eyes.
I also really enjoyed Theo and Liam's scenes in this episode. I haven't been a big fan of Liam this season, I think he's made some questionable choices and there's been too much focus on his relationship with Hayden and him 'preparing to be an alpha' even though logistically that can't happen? Liam would need to steal the power from someone in order to be an alpha when Scott graduates and while that could happen, he's still not ready yet. Theo and Liam work off of one another well though because Liam's morals are a little more grey than Scott's are, even though he's inherently a good character, he will do questionable things to gain an advantage than Scott wouldn't. I think that moral greyness allowed Theo to relate more to Liam and eventually decide to sacrifice himself for a good cause. While Scott is someone Theo could never be like, Liam is someone he could be like. And while I think his redemption arc has moved a little too quickly and there wasn't enough reason for it, it's not surprising to me that they've moved in this direction with his story. It was also really great to see them finally make some progress in the fight against the Ghost Riders, while previously all their fighting hasn't gotten them anywhere, Theo and Liam both managed to kill a Ghost Rider, so they know they can do it now, even if they've vastly outnumbered.
I'm so looking forward to the Winter Finale and the inevitable reunion of Stiles with the pack, especially with Scott and Lydia. And I'm really interested to see how the Ghost Riders and Mr Douglas against Beacon Hills is going to be resolved/if it is or if it'll be continued into 6b.