Decision making in a Active Active senario

When the link returns to normal operations I want the BigIP on site1 to be active and the one on site2 to be standby. But I get it the other way around.

what version are you using? starting in 11.4.0, ha order failover can be configured. i never tested (active/active to active/standby) but thinking it may be usable.

Ordered failover lists for Sync-Failover device groups

An alternative to the new load-aware failover feature is an ordered list. For each traffic group in the device group, you can specify a list of devices that you want to be the next-active device for the traffic group if failover occurs. If the first device in the list is unavailable, the BIG-IP system chooses the next device in the list to be the next-active device, and so on. This feature is more useful for homogeneous, rather than heterogeneous, platforms in device groups.

Release Note: BIG-IP LTM and TMOS 11.4.0