its really interesting to me when the demon inside of izzy says “always the favorite child” to alec. generally from what we saw before of the possession demon, it pulls out your darkest and meanest thoughts about a person (like what raj said to lydia) so we can generally accept that this is something izzy has thought before. which makes it doubly interesting, given that every lightwood family interaction we’ve seen so far has clearly prioritized jace and max over alec and izzy. as well as the fact that izzy knows for a fact that alec would never be the favorite child in her parents eyes after he came out. we saw izzy talk about her mother repeatedly and how she is scorned by her, and this scene also felt, to me, as a way for izzy to lash out and say, “i dont have to do the emotional labor for everyone else. i can be angry and furious.” which i really loved. its really cool to see the envy within that dynamic when we’ve always seen them as one of the most loving and stable sibling relationships.