My aunt and my mother outed me and my cousin to each other

Ok so, I think I need to introduce my family a bit so the story will be easier to understand.

My father have a brother, my uncle and he had two kids with my aunt but they divorced, like my parents. My mother and my aunt have always been closer than my father and his brother so, as a kid, I saw my cousins with my mother. We used to get along pretty well, one is my age and the other is two year older.
However, we spend almost 10 years without seeing each other, it was planned to see my cousins and my aunt again for the summer.
In June, I come out to my mother. Things were good until my mother told my she outed me to my aunt and that the cousin of my age have « gender identity problem » (actually she’s trans but my aunt and my mother keep misgendering her…). I feel like she specifically outed me because my aunt outed my cousin.
Anyway, when I saw my cousin I quickly noticed she wasn’t openly out (from the info my mother gave me before I couldn’t really know). We still talk to each other, and kinda over our love for video games. We exchange discord, and on there we discuss more. I learned that my aunt outed me to my cousin and she learned that her mother outed her.
We’re both really disappointed by our mothers. But, at the same time, we’re both glad to not be the only gay cousin of the family.
I’m happy to have someone kind of like me in my family. But I don’t know, I feel like this was the wrong way to learn that.

I haven’t confront my mother about how bad that was. I don’t know if I should. The situation as a whole is weird.

 

Thanks for your answer. I know they didn't mean harm and I know I should talk about it but it's really nice to hear it from someone else

 

I thank you all for your answer.

Well yes, my cousin and I are closer now and it’s really nice.

Well, for my aunt I think it’s a boundary issue, but after reflection, I think it’s a bit different for my mom.
When she was 14-15 she was diagnosed her sickness (I have mention it in older thread) and at the time her mother forbidden her to talk about it to other family members and my mother has really painful memories of this period of her life. In her head, keeping secrets to family is the worst feeling ever so maybe she thought this is better if people know for me too. She already ask me multiple time when I am going to come out to the rest of the family because she feels uncomfortable keeping this as a secret for now. However, I’m not going to come out quickly to my family for her. She will adapt herself.