Often when gliders come round from an anaesthetic they can have a very strong urge to chew, it's recommended ya take some treats or fruit for them for when they wake up, sometimes they can go for the wound and unpick stitches, that's why an e-colar is used. Does them no harm tho, better safe than have them pick open wounds.
Some times they don't even realise their is anything to pick but if they do then they will keep going back to it. Also, I wouldn't have split up the boys and the girls, there really isn't any need unless the girls groom the boys a lot and would risk upsetting the wounds. Most people just put them all back together straight away. They normally do fine.
But congrats on everything going well and looking forward to having a nice little family back together again :) x