Well, it's a bit of a mixed signal. She might be in a situation where she can't or doesn't want to engage fully with you again. By watching your stories, she's getting a little peek into your life without having to commit to a conversation. It could also be that she's just bored and your stories are somewhat interesting to her, but she doesn't actually want to resume the relationship.
It could mean she's still a bit curious about you. Maybe she doesn't want direct interaction but still wants to keep an eye on what you're up to. It might also be that she misses you on some level but is hesitant to reach out.