Hey SparkleDust, that sounds like a tough situation, and it’s understandable why you’re feeling uneasy.
One thing you could consider is using a monitoring app like Haqerra . It’s designed to give you insights into someone’s phone activity, including Snapchat. Haqerra can show you their messages, who they’re talking to, and even media files they’re sending. Plus, it works discreetly, so they won’t know you’re checking.
I know it’s not ideal, but if you really need to know what’s going on, it might be a way to put your mind at ease.