Is it possible to have interactive decryption?
Probably not. When Bob at the end of the interaction finally computes the plaintext, it must be a function of everything he has obtained thus far; there's nothing stopping him from running the same computation again, unless you introduce some kind of special hardware or other additional assumptions.

In other words, decryption is deterministic, and we know that deterministic interaction is useless ($\mathbf{dIP} = \mathbf{NP}$).