Not bonding :(

[Pattyandellie]

Hello, any help please with bonding my two piggies. I have had patty who is theee and was solo for a long time and now I have rescued Ellie who is also three and is newly solo, I have introduced them three times now on concurrent days. Always in a neutral place. Today I got bitten as I tried to break them up. Neither is backing down.
please help

 

[Piggies&buns]

Character compatibility is vital to any bond. When you get a new piggy on spec (without dating at the centre so your piggy can choose her own new friend) then there is always a risk that they will not be compatible and don’t like each other. If they are fighting and cannot form a hierarchy then I’m afraid it sounds as if there is no chance of them being able to live together. Unfortunately you can’t make them want to be together.

I’ll add some guides below to help you further

Bonding and Interaction: Illustrated social behaviours and bonding dynamics
Moody guinea pigs: Depression, Bullying, Aggression, Stress, Fear and Antisocial Behaviour

the second guide explains fear aggression, which is what both of them may be feeling