Uninvited From Brother’s Wedding

I told my brother, and his fiance, a few weeks ago that I’ve left the church. I gave a brief explanation before we proceeded to chat about it for around an hour. I told them I wanted to support them at their wedding however I could, whether or not I was in the temple. They told me they were okay with whatever I chose and they were hoping I would be there.

I started getting excited the last few weeks, anticipating attending their wedding coming up in this next week, until brother sent me this text…

I don’t even know how to respond but I’m so frustrated at how much the church excludes family from something as important as a wedding! I’m even more frustrated that my brother and fiance decided to uninvite me from their wedding over it!

I’m really frustrated so I left him on read. How do I even respond??