Good morning, take a deep breath and a step back.
3 days to 3 months is a a very limited range, there is no time frame for "bonded" gliders, it takes as long as it takes and it doesn't stop. It's building trust, building a friendship that is an on going process. I have one that took 2 weeks and one that has taken over a year. I'm at different levels of friend ship with all 7 of mine. Please keep in mind that joeys this young have their own unique hurdles, everything in their limited life has changed, be patient they are scared and alone.
1 how big is the gliders cage?
2 is the cage stimulating ? toys, glider safe wheel?
In my opinion their first safe place is their cage, that is their home, where their fav stuff is, where they can feel secure and safe, where the human only enters to feed and clean. 2nd safe place is their sleeping pouch.
If your having issues getting her back in the cage during tent time turn on the light and offer her the pouch instead of chasing her, she will likely voluntarily go into the pouch. IF she doesn't go in the pouch on her own, Dont use your bare hands to catch her, use the pouch like an oven mit, or a piece of fleece to pick her up with. How big is the tent your using? The 3rd safe place is on you. That takes time, you have to earn her trust, AND start to trust her. Also you can do tent time during the day when she's less active and energetic. The point of tent time is to explore YOU on their terms, if the tent is to big and she is just running around and climbing she's not interacting with you or getting to know you. I prefer sitting in the bath tub at first to limit the space around us....
Introductions for gliders can be tricky, pleaseeeeee read up on introduction methods or ask someone who has done several introductions. They can go very well or horribly wrong and even if they do go very well you will need to monitor them once they are in the same cage for a few weeks sometimes longer to make sure it's going well and going to work long term.