Don't like black women BUT was able to romantically talk on the phone to a black woman for 11 hours

I am a 26 year old gay black woman and I was talking on the phone with a 28 year old gay black woman for 11 hours on the phone. We talked every night like this back to back. The connection, energy, and good chemistry was there until she found out I was black like her. Suddenly she lost interest and told me she only dates outside her race. She likes white women. Why do I feel like I wasted my time with this person?