I had two cats from a rescue centre about 7-8 weeks ago.
They are 18 months old and came as a bonded pair.
All was fine, they were clearly bonded with each other and we’ve had no problems.
One was more outgoing than the other and things have pretty much stayed that way but for the last 2 weeks or so as they’ve become more settled in living with us, the quieter one has really blossomed and is much more outgoing now.
I don’t know if this has now caused an upset in their dynamic because over the last week, the once most-confident cat now keeps lashing out at her sister and hissing at her for absolutely no reason.
It started off as just happening a few times a day but now it’s happening really frequently to the point where even if the once-quieter cat even walks near her sister, she will get hissed at and jabbed.
It’s quite upsetting really.
Has anyone been in a similar situation?
We’ve had Feliway diffusers throughout the house for the last month so it’s not even like we can try introducing those to see if it helps.
I just don’t understand why one sister has suddenly turned on the other.