Hello Vanessa and welcome to SOCCC.
What a fantastic thing to do, to rescue two Meezer and give them a great home!

Sorry to hear they are going through a rough spell at the mo, and hope you can offer you some help and support.
If Audrey and Betty are going through a pecking order issue right now, then I can only share with you my experience of having two cats who sometimes go through this. I have an Oriental boy and a Siamese girl. They love one another but their relationship constantly shifts from being peaceful to being like two squabbling siblings.

At the moment we are going through a phase of civil unrest in our house and for the last week or so they have been driving me crazy with their constant bickering!

They curl up together as normal, but when they are around us they can get a bit.....well, you just want to bang their heads together sometimes, if you know what I mean!

Alaska, my girl, moans whenever Baggy (boy) walks anywhere near her and this in turn sets him into his mischievous mood of winding her up a treat, which then makes her more moany (she goes off like an air raid siren) and him more naughty.

Sometimes it's just the case of her being a bit mouthy and him doing the equivalent of goosing her bum or throwing his arm over her shoulder and getting her in a headlock - but sometimes they get a bit too hands on and end up, not fighting, but there can be a bit of ham actor-like pushing and shoving.
This type of thing usually resolves itself on its own. Baggy is most probably going through a phase of trying to be over dominant with Alaska and she really doesn't like to be in second place so they end up having friction - although sometimes rather than fighting back Alaska seems to get a bit quiet and withdrawn. Normally Alaska will just snap and give him a damn good thrashing by cashing him around the house biting his ankles (he hates that) or she has been know to mount him in a sign of dominance. If this doesn't happen soon one thing that I need to do is take her and give her some one-on-one attention.

This works a treat up boosting her self-confidence and giving her enough validation so that when Baggy tries to boss her about she puts him right back in his place. I will take her outside or upstairs to my bedroom and just fuss over her for a time and this seems to help her. I don't know if all cats need to have a pecking order as such, but they way I've found to keep harmony with my two if to make sure Alaska isn't dominated by anyone, as she doesn't do well in that situation. Baggy, on the other hand, is easygoing enough to be fine wherever he is the the family dynamics.
I have no idea if any of that is helpful or if I'm just blabbering on!