I have a male grey and a female lutino but they never share food or preen each other. They often sleep on the same perch. My male sometimes bully her to get her off the perch or food container but later sings and tries to come near her(she gets away). My female was too scared of everything since I got her but lately she is getting more comfortable. I've had them for about 9 months now and they are about 1.2 years old. Will they ever bond?