I'm going to dump my gf because she is bi
Why do you wanna dump her for being bi?
I want to be with someone who is not attracted to anyone else
It's wrong to dump someone just because of their sexual orientation. If they love you then it shouldn't be a problem.
It's disgusting.
It is wrong to judge people based on their sexuality. There are many bisexuals in stable long term relationships. If you have a problem you can talk about being an exclusive couple.