I have the feeling that `` under the relevant usage is used adverbially and implies "remembering the item one after another while listing", and I think it requires at least three items. Two is too short for remembering one after another.
> ABC
> ?* AB
> ABC
> ?* AB
`` cannot have a dative argument, and I guess the structure of `ABC` is `A[B[C]]` "C will get married, in addition to B, in addition to A", rather than `[ABC]`, so it cannot have the reciprocal interpretation. `BA` is completely ungrammatical.
If you wanted to do a listing interpretation for ``, which takes a dative argument, then you can do this:
> AB()CD (A, B: listing interpretation, D: dative)
> 'A, and B, and also C, met D'
> ABC()D (B, C: listing interpretation, D: dative)
> 'A met B, and C, and also D'