These lovebirds usually get on well together. They occasionally squabble but these confrontations are rarely serious. They can be kept together with other, spirited species of parakeet. Delicate and smaller birds should not be kept in the same aviary or cage.
Single birds can also be kept provided they are given sufficient attention. You can keep two birds, of whatever sex, in a cage in the living room without any problems arising. However, you should never simply introduce a new bird into a cage containing an existing single bird. The new bird will often be regarded as an intruder and will also be treated as such.
It is better to keep both birds in different accommodation or let them get used to each other for quite a long time by placing the cages close together.