How can I stop watching her stories?

Well, think about why you have that thought. Maybe the stories have become repetitive or not interesting to you anymore. If so, then stopping could be a good choice. But if there's still a glimmer of hope or something that keeps you hooked, you might want to give it a little more time.

It depends on how you feel. If they no longer interest you or make you uncomfortable, maybe it's time to stop.

Yes, if watching his stories makes you feel uncomfortable or is a waste of your time, then you should stop.

Maybe she got bored with them.

It depends on how you feel about it. If it makes you uncomfortable or is a distraction, then yes, you should stop. But if you enjoy them and they don't have a negative impact on you, there's no reason to stop.

Maybe he's just not interested anymore. It could be that the content doesn't appeal to him for some reason.

Often, it's in the preferences or settings section of the website or app. Just search for 'autoplay' and make sure it's set to off. Sometimes, it might be under a 'video' or 'playback' subheading.

Perhaps he's having some personal issues or going through a phase where he's not in the mood for any stories at all. It might not have anything to do with yours specifically.

It could go either way. If your interaction with her often involves discussing his stories or if she expects you to be interested in them, she might notice. Otherwise, she might not give it a second thought.

Maybe they lost interest or got too busy.

Maybe she's just too busy and doesn't have the time right now.