I did like the final moment with the look back on the bridge and both of them basically admitting they don't want to quit each other just yet. What form their relationship takes in Season 4 is up for debate, with Villanelle tired of killing and the pursuit of the 12 seemingly not worth it.
The scene with them all in the room was good as well. Although the ultimate explanation for Kenny's death seemed suspect, especially coming from Konstatine. Yet, I don't think he would actually kill Kenny, regardless if he could potentially be his father or not
Villanelle's subway kill and her scaring Eve's co-workers were both