Boss asks me to call her - then asks me to wait until Monday to talk

*sorry if this isn’t fitting for this group*

I drive all day for work. I’m provided with a very old android so I don’t always hear notifications. I got a text from boss to call her when I have a minute. She texted me around the time I clocked out. I call her when I get home but she realized I’m off the clock so said to wait to talk until Monday. I asked if everything was okay and she said yes. Texted her after the fact and asked again if something was wrong. She said everything is fine. She didn’t want to take up my time if I was off the clock, even though I said it was fine and we have talked off the clock many times before. I had to pick up something for her earlier that day, but it wasn’t ready. I texted her about it but never got a text back which was weird bc she always texts back fast. Usually she will just ask for me to see her before I leave to talk to me about work, but this time she asked me to call her. I’m definitely thinking too hard. I wish she would have just said what she wanted to say and not have me wonder all weekend