spliting up bonded brother and sister greenwings what could be the ill effects?

by donna addario
(Pennsylvania)

I adopted 2 greenwings age 4 yrs, i was concerned for their well being, i had only wanted 1 greenwing, the bonding is issue i have no experience with or the possible ill effects on the birds.

2 greenwings is too much care for me, the male seems needy, and gives me the impression he needs more attention. his sister when she has had enough knocks him off the perch. I also am concerned will the spilt affect the female? She is well behaved, doesnt scream, loves being out of her cage on her stand or with me. ive only had them for a week,
longer i keep the male it will make it more difficult to give him up. advice?