Sugar gliders bonding?

hi, i bought 3 sugar gliders on may, 28, and i was just wondering when they should be fully bonded. like is there an estimated time when they SHOULD be bonded, or when the latest time that they would be bonded to me? or if theres a certain amount of days/months that if theyre not bonded by then, that they may never be bonded to anybody at all? yes, i know how to take care of them, so please dont give me advice on their diet, stuff like that. (they eat crickets, mealworms, special pellet food given by my vet, etc... apples, fruits... yada yada yada :)