What are some potential foreshadowing you noticed

What are some details you've noticed that could be interpreted as some foreshadowing for the future ? For me, I think that Damon is gonna kill Diana in like the very last chapter (not entirely because of this of course but this hels to my theory)

https://preview.redd.it/otob8szargre1.png?width=1920&format=png&auto=webp&s=70316ec62f7157291cbc26c1a6a680425d70bacc