Ok so what if this apparent joke about Stiles’ cute crush on Lydia made them miss an important clue about Stiles’ condition? Aiden and Lydia both seem to believe that Stiles framed Lydia’s drawing and was meaning to give it to her as a gift, but that doesn’t make a lot of sense now, does it? Stiles used to have a schoolboy crush on Lydia and would buy her things (flat-screen TV, jewelry, etc.) but their relationship has evolved so much over the past couple of seasons. I feel like there is more than meets the eye about this scene. I think the part of Stiles that is trapped inside of him is trying to leave clues and this is one of them. Maybe he was urging Lydia to go back to the Nemeton because she might find some answers there?