All by Myself- I have No Friends

The closest friend I thought I had is acting all weird, silence on the phone, short answers, I hardly see her due to covid. The sad thing about it she knows most things about me. She knows I have social anxiety, she knows I hate confrontations but it appears she is trying to get me to argue with her. I asked her what is wrong and she says nothing. She could be jealous of me due to her situation but you know I am tired of trying to figure people out because like I said it takes too much of my mental energy. She works 2 jobs I don't have to work, I am married, she isn't..I have decided to not call her anymore and focus on my own mental health because you can't actually care for someone if you take your friend through a maze. I've been down this road before and have left many behind but it seems I have no genuine friends. I have no friends.