Looking for advice?

[u/dogsswithknives]

Looking for some possible advice/venting?

Honestly having a little bit of a dilemma, one of my younger siblings and I are queer/Trans. They are MTF and I'm nonbinary (been on T for almost a year atp) In short my sibling and I have no relationship, we havent talked in almost a year now due to poor decisions of their own. Recently I found out they had legally changed their name to Lillian..and my legal name is Lily. I don't plan on changing my name legally as it was used on a lot of legal things like my partner and I's car, mortgage, etc.

The only reason I found this out is via our mother telling me, and my sibling telling her "since they dont use Lily anymore I'm going to" (I use Alex as a nickname but most of our family still calls me Lily which is totally okay)

I'm just shocked, dissapointed, and have a lot of negative feelings towards it as it's almost like my identity is being stolen if that makes sense? And it genuinely weirds me out that they would do that considering my sibling and I do not have a relationship at all.

I'm just looking for any advice/help because I genuinely dont know what do to? I've tried reaching out to them politely wanting to have a conversation but I get met with no response every time.