Do I need to act different?

Okay this is about a friend not a romantic partner but it’s a relationship so I’m posting it here lol.

I live in the south of the US but I’m from the north, grew up in a small town. Left at 17 and have moved tonnes ever since.

Still have a few good friends from back home - I’m not great at keeping in touch but we have remained text friends and care about each other and when it happens to work out over the last 10 years I see who I can in real life.

Well I have a friend back home who I love and she loves me but she and I live much different lives. She is getting married and asked me to be in her wedding party (though it was definitely more of a tell than an ask) and lately she has been so rattled with me. Like I’m supportive and excited 100%. Was honestly flattered and surprised she asked me to be in her party. It’s been great in my mind but lately I realized she is just on a lower maturity level than me.. she’s only a year younger than me but she’s just on a different page (which I’ve always been totally cool with, I love her for who she is and I love how we get along etc she’s brilliant and caring and a good friend)

I get the impression she thought I would maybe have more to give her emotionally since I’m in her wedding party. I’ve been married for a long time and have a baby etc and thought she knew me well enough to know I’m literally in the thick of life right now. Like I have no village to help me and I moved 2 years ago for my husbands job and am kinda having a hard time adjusting and also having a hard time admitting that etc.

My question is - is it reasonable for her to have expected more from our friendship since she has me in her wedding party? Should I be allocating more of my time and energy into our friendship than before being asked?

Side note: IMO I am excited and present and curious and there for her all things wedding. Dress, songs, venue all that. I don’t go way out of my way I can admit but I do what I can 100%. And frankly I think I would have been this supportive even if she didn’t involve me in the party because I’m excited for her and want her to have a great time. I am wondering if I should feel bad? Cuz I do but I can hardly do more.

Random note but I should also add, she knows I don’t have a village and the wedding is at an adults only resort.