Her: Yeah u can meet a lot of crazy people here
Her: I downloaded this app with my friend we were just talking to people of course ignoring those idiots

I’m glad you understand why I always want to meet in public first. I don’t think you’re one of those people but you can never be too safe these days
 This message deals with a concern that was previously brought up in the conversation. The last part makes it easier for her to agree as it is likely to be something that she is thinking.