I don't especially since all of Seven's memories were repressed while a drone. However as we saw in "Raven" & "Dark Frontier" once those memories returned, so did the experance that came with them. One of the results was seen in "Child's Play" were she associated the irresponsability of Icheb's parents with those of her own. Due to her remembering that, she was better equipped to be Icheb's protector.The "six-year" relationship with Axum in Unimatrix Zero doesn't really count toward Seven's maturity level for several reasons.
First, none of the drones could remember in real life what happened in UZ until after Voyager came along. IIRC, there was no restoration of previous memories, at all, and Seven only gradually came to appreciate the depth of her connection to Axum just as the UZ connection was dissolving and they kissed.
Second, UZ was a sort of "Utiopia" where they were together only intermittantly and then for short periods of time. I'm not convinced that Seven learned all that much about the give-and-take of a real romance while there.
Now, this doesn't mean that the love she felt for Axum was bogus--she admitted to Janeway at the end of UZ that it wasn't--I just don't believe we can put much reliance on her six year relationship in UZ to justify more maturity than we saw on the show itself.
If she had learned and retained much from being in UZ, she would have been a very different drone from the first. If those memories had been restored to her in UZ, she would have been vastly different after the episode ended and in the later seasons.
At least, that's my take on her UZ years--and I'm sure not everyone will agree with me.![]()
The memories that were "restored" in those episodes were from the years before she was assimilated. She always had the memories of her Borg years--because she was haunted by them at times. What she lost for good was the memory of what happened in UZ while she was regenerating.