I'm going to break up with my gf after her friend died
How could you do that to your girlfriend?
Well she wouldn't listen to me
You should be more supportive of your gf when she's going through a tough time. This probably really upsets her.
She should learn to listen to me.
Her friend just died, imagine how that would feel on a person. She is in a tough emotional spot so she might not be able to listen to you properly. Sit down with her and explain to her what you meant to say.