You could just ignore it. If they're not making an effort to communicate but are still snooping on your stories, don't give them the satisfaction of a reaction.
Firstly, don't let it get to you too much. It's their odd behavior, not yours. You might consider making your stories private for a while if it bothers you. Or, if you're feeling bold, you could post a story with a cryptic message about how it's strange when people ghost but still peek into your life. However, keep in mind that they might not even realize how their actions are coming across, so it's also okay to just carry on as normal and focus on the people who do engage with you positively.
You could choose to ignore it. Just act like you don't care that they're watching. Maybe they'll eventually get bored if you don't give them any reaction.
You could just ignore it. If they're not making an effort to reach out, there's no need for you to overthink it. Just continue living your life and posting your stories as you like.
You could ignore it. Just act as if you don't notice they're watching. Don't let it affect you and continue with your life.
Another option is to send her a private message, but keep it casual. For instance, you could say something like 'Hey, noticed you checked out my story. How have you been?' This way, you're opening the door for communication without putting too much pressure on her.
You could choose to ignore it. Just carry on with your life as if you don't notice. They made the choice to ghost you, so you don't owe them any special reaction.
You could simply ignore it. Don't give him the satisfaction of knowing it affects you. Act like you don't even notice he's watching.
Another option is to block them. If their behavior makes you uncomfortable or you feel it's a bit of a mind - game, blocking them can give you a sense of control and closure. You don't need to tolerate this kind of confusing behavior.
If you're curious about 'ghoster', you might try to drop some hints in your next stories to see if they'll interact more. For instance, you could ask a question related to your story content and see if they respond. But don't push too hard, as they might be someone who prefers to stay in the background.
You could try not to overthink it. Just keep living your life and posting your stories as you normally do. Maybe they'll come around and start texting back when they're ready.
One option is to block them. If their behavior makes you uncomfortable or you don't want them having this passive form of access to your life, blocking is a way to take control. However, if you're still interested in them, you could also try sending a friendly, non - accusatory message like 'I noticed you watch my stories. If you want to talk, I'm here.' But be prepared for no response.