>Ellie goes to drown Abby at the end as it already plays out
>Lev wakes up and see's her doing it
>Starts begging her to not do it
>Ellie suddenly realises what she's doing, Lev is saying the same things she said to Abby before she killed Joel and started the whole cycle of revenge
>She lets Abby go but at least this time has some semblance of a reason for stopping her drowning of Abby
It wouldn't be prefect but it would make more sense than the ending we got without having to resort to "Ellie kills Abby lol"