What would you do if your best friend did that?

Ok this sounds pretty mundane but I have really terribly social anxiety so sometimes I like to post qs's on here and just make sure.

My best friend is about to finish her senior year in high school, her last exam is tomorrow and I want to get her some flowers and chocolate and write a little note saying congrats etc. She was really nevous about the exams so I want her to know I'm really proud she got through them so well.

I have to drop the flowers etc at her door because I have to go somewhere else so when she gets back she will find them.

THE PROBLEM: my friggin crippling social anxiety is making me worried she will think I'm creepy or clingy or wierd idk. We are super close, and she's always referring to me as her sister, but I just need to make sure! I had to drop put of school because of my anxiety, hence I'm not doing the exams!

But if you finished your exams and found flowers etc on your door step when you got back home from your best friend, what would you think?