I hate when my brain starts obsessing about stuff 😑

Long story short, I think my friend might be mad or fed up with me. She seems distant when I message her (she hardly responds, when usually she is almost just as talkative as me) and tonight was the third time this week she has said she would come over to see me and she didn't and didn't even apologize. She and her husband run the family business so I'm trying to be mindful that maybe she is just stressed out but still. My brain insists I am the problem and I need to fix something. I'm also a little sad because I was ill last week and home the whole week with no visitors (I didn't have a anything contagious) so when she said she would stop by, I was really looking forward to her visit, but she never came.

Tonight it's bugging me a lot and my husband tells me to just leave it alone and give her space, but I cant help it but worry and now I can't sleep because I keep playing in my mind how to ask her if she is mad with me without asking or coming across as immature.