AITAH for telling my best friend (24f)(let’s call her Maddie)for not bieng ok with her bieng MOH (maid of honour) for her other friends wedding?

Hear me out. So Maddie and I have been best friends for over a decade, we’ve always had each others backs we hang out every few weeks and have always remained close. I have always considered her my no.1 best friend and I know she does likewise. As one naturally does, it’s ok to have other friends which her and I never had problems with, never jealous of each other having other friends. Recently one of her closest friends who’s a colleague, asked her to be her maid of honour to her wedding. Now Maddie and I have always told each other that we’d be each others MOH when the time comes. You might be wondering, so what’s the issue? , it’s just I always thought she’d be my MOH FIRST and then she came be anyone else’s after mine. I’m aware that I am jealous and upset and maybe to some of you it’s not a big deal ( as in one’s title in a wedding)But it is to me. Perhaps it’s cuz I am more territorial when it comes to friend titles than she is. Maddie was always very bubbly and outgoing so I can see why she was chosen and it’s nice to see that someone else sees how valuable she is just as much as I do. And I am happy for her in that aspect. When we talked out she said that it was somtning that should’ve remained unsaid. That stung like a bitch. So are my feelings invalid? In some way I feel betrayed that she wouldn’t leave the first experience to be with each other and in no way am I stopping her Ofcourse because it’s her decision after all. I just wanted to be honest how I felt. So am I the asshole?