Lesbian Diction Class With Brandy. Partner vs girlfriend.

Happy Sunday morning people! How are you? Do you need some Advil and vernacular clarity? 

Step into my lesbi-dictionary. 

(I already told her twice that I have a girlfriend)

Me: No, I have a girlfriend....like.....a girlfriend.....I'm gay

Her: Ohhhhhhh!!!

Me: Yaaaa!!! Haha

We both laugh. 

Do we have to use the word "partner"? 

I really don't want to. It sounds like we are joint owners of a door-to-door vacuum repair shop.