Thanks for your reply
I am agreeing with you that I should allow him to play with the other budgies while I am away. It is something I will work towards.
I am still clueless as how to get Tweet to eat without me. Or how to get him feeling safe with his carry cage. He wants to leave the room with me.. which I want to! So he sits on my shoulder as I am about to leave. All I need is for him to see the carry cage as a safe place that takes him to another room.
He is such a beautiful boy, and the more I read on this forum about bugie bonding tells me he is even more charming then I thought! For ages he would nibble on my nose or where ever he fancied, it never hurt but I was worried he was angry. I learned here that he is being affectionate. I just want to keep his wonderful nature and do the best I can for him.