Hey Kayla! I saved your post in my inbox to respond, and it's been a long time since you posted, but I stil wanted to respond!! 

I think your insecurities and worries are normal for a musician's wife! However, a good thing to remember is that your insecurities are solely your problem, and not your husband's. Also, the more you get used to the life, the easier it will get. You will get used to the attention he may receive, and will realize it's harmless and groupies or fangirls definitely don't always get what they want.

Besides the normal stuff, you mentioned your husband has Asperger's. That is what piqued my interest the most, as I also have Asperger's and I, too, have the Aspie passion for music :) I think an Aspie musician would be the best choice and the last kind of person I would worry about with strangers hitting on him and such. Aspies don't like strangers and just being social is a handful, so I think maybe after being social in order to further his music career, he won't want to talk to anyone besides you.

Sorry this was such a late response, I hope you guys are still doing well! Let me know how things have been since your post!