frustrated

I have a friend (let's call her N) and we used to be super close last year. but lately, it kinda feels like she only really talks about herself. I check in on her and make sure she is ok and let her know she is never alone, but she never really does the same back. I know I don't know everything happening in her life and it's okay if she doesn't check up on me, it's just hard because I give her 100%. And now she posted a picture of her in front of a store without a mask on. I don't know if she did it just for the picture or not. I just feel like she should be wearing mask if she is around strangers outside. It's her life and I don't have a say in what she does and she is allow to do what she wants with her life, I just want her to be safe