How can I tell me girl friend to stop snapchating other guys?

She told me she will not stop. But it’s making me feel very uncomfortable. Being available to other guys like this feels disrespectful to me and our relationship. She says I need to trust her. But it’s still making me stressed out. How can I tell her this without being controlling. I know for a fact that my feelings are real. Sending snaps everyday to other guys feels very uncomfortable. I am a bit afraid to confront her about this again. I don’t know how to tell her, if I am going to marry her some day this cannot go on. I want to feel safe and secure that she is only available to me. I have so much anxiety fron this.
How can I tell me girl friend to stop snapchating other guys?
Post Opinion