Since they are both young rabbits, they aren’t really considered “bonded” to begin with– many people call this stage a “baby bond”, which is known to be temporary. Some will naturally flow into a formal “bonded rabbit” pair after puberty, but in many cases, the baby bond dissolves (very normal) with puberty, so separation is needed until both rabbits are spayed/neutered, recovered, and the bonding process is started to establish a formal, lifelong bond.
Separating young M/F rabbits not only prevents unwanted pregnancy, but I feel it increases the chances of bonding post-puberty if you see signs of the baby bond dissolving, as you are eliminating the chance of negative interactions/grudges to occur as a result of hormone-mediated fights which will occur if they are kept together.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.