I was referring to the
[FFVII] Fleeing towards Midgar, means intending to be under the care of one of his many female friends?
though I remembered it as girlfriends
Well to be fair, the noun used there is ガールフレンド [garufurendo] which I believe is essentially a loaned word (
gairaigo) from the English equivalents of "girlfriend or female [girl] friend". I can only speak based on what I've researched, but it seems pretty common to have this used for referring to what we know as a girlfriend (this was also the noun used in Zack's letter to describe Aerith), but I've also seen it as for describing a female friend as well.
Full line for curiousity sake: ミッドガルに逃げようとしたのは、大勢いるガールフレンドの誰かに世話になるつもりだったから?
Though, this was something that was specifically described in the Ultimania, right? The actual scene has Zack pretty much describe this part of his dialogue in a way that doesn't imply multiple people: "I got
a place I can crash for a while...", "No wait, the mother lives there, too...", "Guess that's out..."
That seems to be the end of it. There's also the fact that the BentStuff staff intentionally wrote it as inquisitive as opposed to a fact—this accompanying the idea of Zack being a "ladies man" and the ambiguity of this trait in regards to the mystery corresponding to Zack's whereabouts in the OG, specifically for what Aerith was thinking happened to him. Other than the truth of what Zack was actually doing, one would still have to consider the lack of context and development his character has in the OG. Personally, I don't believe this line in the 10th Anni was meant to be taken as fact, anyway, other than being a nuance to that part of the story regarding the ambiguity of Zack's character and his fate. Since it was a section talking about that part of his flirty personality corresponding to the depictions in each specific game, I can see why the BentStuff staff decided to write it that way for the OG scene specifically.
With that being said, I'm sure it was translated to "female friends" because of contextual reasons.
I mean, it would seem rather counterintuitive for Zack to write "I've managed to get a girlfriend" like it's some sort of feat, even if Aerith happened to be the first one he acquired by the time he wrote that letter. Really, the ever so hounded nature of his flirtatious personality really doesn't actually depict him being super successful with this (or even that he really is trying to be every time) Almost like a less extreme Johnny Bravo, I guess, but I digress. I don't believe we're given enough context to believe he was cheating with certainty, as even Aerith in the OG pointing out his personality-trait is purposely then compromised by the truth of Zack's fate and the fact he hasn't returned home. The storytelling in the OG doesn't really give the impression her thought process was actually correct given the revealing of the truth.