Hi Sid,
You are on the road to becoming the best birdie parront just by joining posting and reading.
I'm sorry for your loss, and for Michael loss too. He has his own sense of loss to process, plus all the changes of learning to be with you.
It is way to soon to say he doesn't like you....
When I rescued my Quaker Penny, she was a screaming nervous angry mess, and her first word to me were the curse F.. off....... Today she is such a sweet old lady bird, full of humor. But she does not deal with change , any change freaks her out.
So I feel you are dealing with an emotional being with a lot going on.
My advice is first thing in the morning when you wake up, go right to the bird to say hello and good morning. Morning seems to be very important to birds!!! They want to know you survived the night, and reafirm your bonds with the flock. If I sleep in five minutes by birds are sure I've moved out , so if I just go say hi and fuss over them I'm able to snatch an extra half hour.
Anyway best of luck , glad you joined, I'm sure the good people here will have lots to share