I'm going to fight with my gf over kittens
What about the kittens is so upsetting to you?
I am pissed at her for not taking care of the kittens right.
If you think she is doing a bad job you should do it yourself. You should not get angry and yell at your gf, she might not know what to do.
She knows what to do but she just wants to piss me off so she deserves to get yelled at.
I think that that is going to end pretty bad. I would try to talk to her first and let her know how you are feeling. You are going to get further by talking through your issues than you will by screaming and yelling.