Is my ex stalking me?

So long story short. My ex blocked me on her main instagram page but her second page isn’t. We used to follow each other on it about 2 years ago but not anymore but I’m not blocked on her second page. So fast forward, I noticed that on instagram direct the top 3 people usually be the ones I interact with the most. My current top 1 is my gf and number 3 who is my best friend and both people send me reels daily. Now number 2 is my ex and she recently popped back up on there as she was absent from my instagram direct list for nearly a year. Now I do have a burner instagram where I stalk her page(I’m over her btw but I do randomly check on her) and instagram direct it she doesn’t show up at all. Only my main page is at the top of the list and 2 other people who I’ve messaged.

Do you think my ex is stalking me?