So this was happening in August...
Snowy will check out Nala a bit but Nala lunges at him and bites him when he gets too close. Nala will occasionally chase after him but other than that she’s not that aggressive.
And this is happening now...
now he (Snowy) bites Nala when she gets too close. Nala poses no real threat other than some chasing. Any tips? (P.S they are both spayed/neutered)
Snowy is reacting as expected -- biting Nala in defense because she kept lunging & biting at him. This means they aren't bonded and may never bond.
If you really want to make it work as a bond, you may need to totally separate them and hope they forget each other. Basically you would be doing a do-over. To do this, ideally, both would go to a separate location in the home. Then after 2 weeks of total separation, they would be re-introduced in some place neither has been before.
Before they are re-introduced in this new neutral space, it may help to put them in side-by-side pens (not touching) for several weeks so they can again get accustomed to being near each other without any possibility of threat from the other. After that length of time, they can be monitored and introduced fact to face.
I saw in past posts that stress-bonding was recommended to you. I do not think stress bonding is viable for bonding rabbits unless they are already inclined to get along anyway. Yours do not seem so inclined. The following article explains more on what/why stress bonding is
not helpful.
You only need to open up an animal magazine or take a look at a rabbit website to see how much has now been written about bonding rabbits, the pros and cons, and various “tried and tested” techniques for guaranteed success. If only it was that simple. Alongside this flurry of seemingly endless...
cottontails-rescue.org.uk
While they are spending time apart, you can read up on better methods of bonding here:
INTRODUCTION TO BONDING METHODS Most rabbits are territorial by nature. However, this does not mean that they all have to lead solitary lives. Rabbits that live in compatible pairs or occasionally even small groups will often benefit in many ways, including companionship, mental and physical...
cottontails-rescue.org.uk