sentences:  This usually arises when inexperienced bird keepers house two birds alone, & wait on behavioral signs that they're a "true pair", with the intention of swapping one out for another lovebird if they're not; then being excited when they see birds "pair up", even though they may both be of the same sex.These bonds are artificial, & can be broken, or tested if the "pair" are re-housed communally (or split up by the keeper).One or both of a pair of males may go, and breed with lone hens, despite staying connected to their original partner.