How can I (22f) stop my toxic behaviours in my talking stage (22m)?

So I (22f) just started talking to this one guy (22m) we have a lot of banter and we’ve talked about deeper topics/ our past and stuff which with my past dating prospects never really happened. I’m not really familiar with dating at all (I’ve had one situationship before 🤢 and have gone on dates but usually it stays surface level) so everything is pretty new BUTTTTTT I realize when we don’t talk I get super anxious and am like “he literally hates me so much and he’s gonna ghost me”. The thing is is that he’s not my boyfriend, he doesn’t really owe me that reassurance since we aren’t really in a relationship idk how to stop this behaviour. Any advice will help thank u anyone who reads this!!!