Welcome to the forum and congrats on your new fuzz butt
Actually the first thing you need to do is slow down. 2 Weeks he is barely settled into his new environment. It's very overwhelming for gliders to be rehomed, a lot of new sites, smells, sounds, people, food, other pets, kids etc... to get adjusted to. Please don't put expectations on him as far as bonding goes that will only leave you disappointed and him frustrated.
Next understand what "bonding" means, it means nothing more than trust. He needs to learn to trust you and you need to learn to trust him, it's a two way street. Trust takes time, plain n simple.
This part is to Bossihamham.... I really don't mean to sound rude but, when giving advice it's best not to assume anything. Tbtorres may or may not have him on a "approved" diet, You need to ask people these things not tell them, because you really have no idea if they already do or not.
Second, the amount of "protein mixture" is called staple by most people, serving size depends on what diet they follow, not ALL staples are 1 tablespoon servings. If your not sure what serving size is for a specific diet then please check the instructions of THAT diet. Pleaseeeeeeee if your going to give advice make sure it's accurate and thorough information.
Tbtorres, what are you feeding him ? Do you have a glider safe wheel in the cage? Do you have toys in the cage to stimulate him ?
Transferring from one pouch to another is great!! Don't worry if he won't let you handle him much, gliders don't generally like to be "held".
Try to get on a set routine, get him out of the cage at the same time everyday, treats at the same time everyday, his dinner put in the cage at the same time everyday. Talk to him when you approach the cage so he knows your coming.... He will learn this routine pretty quickly and start to get used to how the rhythm of your house and his new environment flows.
Are you using the bonding bag during the day? it's one of the best times to bond when they are sleepy.
Is the glider neutered? If not he will need neutered BEFORE getting him a cage mate. It will help with the smell, territorial, AND PREVENT any breeding.
Single gliders can do just fine as a single. However, they do typically do better with a cagemate, they are colony animals.
In the meantime watch his behaviors, learn his body language, get to know what is normal for HIM so you will recognize abnormal behavior. Watch for signs of stress, back flips, circling, excessive running on the wheel, over grooming ( bald patches) any repetitive behavior like these are often signs of loneliness or cage to small or not enough stimulating toys in the cage.....
If you are interested in getting him a cage mate there are many places you can find them. Depending on where you live you may have a local rescue, there is always Craigslist, and Fb Groups like Sugar Glider Guardians. I'm an admin of that group, we also have a fantastic mentoring program where you can ask someone questions one on one if your interested please feel free to join the group
https://www.facebook.com/groups/sugargliderguardians/
or message me on facebook
https://www.facebook.com/carla.sloan.1
Just take your time, he will bond on his own time frame on his own terms not yours ;)