unfinished

I have provided two contexts both containing "unfinished".

Does it in the first context mean "forever incomplete and in progress" or "extremely limitless and boundless"?

Does it in the second context mean "a deathless and eternal love" or "a failed love"?

First context:


Second context:

Debord and the Situationist International became substantially associated with Lefebvre in the early years of the movement’s existence since, in both actuality and spirit, they certainly lived nearby. The relationship, later described by Lefebvre as ‘a sort of unfinished love affair’.