"I’m pretty sure we’ve all been in this situation at some point when we’re keen on someone."
This is ridiculous though. I've never been in this situation. Maybe that's because I'm comparatively older - when I was dating back in the day 😂 we had to find a phone box and drop ten pences into it if we wanted to chat.
Op, I don't want to add to any pile on, as I know you're feeling insecure as it is. But please, the best thing you can do tonight is to find something to do that you enjoy, be it Netflix, a bath, mumsnetting, an early night, a phone call to a friend - whatever. Just focus on you, and leave him to his own devices. I know you must be feeling anxious, but texting him isn't the solution, and you must know in yourself that it wouldn't be fair on him. He needs time with friends, just like you do - uninterrupted.
I would hate it if my DH contacted me for no good reason while I was out with friends. Fine if there was an emergency, but otherwise, just no. I need that time away, just like he does, and just like you do. Do you get time away?
I've been married for 17 years now, so I'm a good bit further down the path than you. If it helps, I don't think of DH being out with friends as "radio silence", just that we're having a night apart - and that's ok. I just use the time to embrace a bit of peace to myself, just like he does when I'm out with my friends.
Please be kind to yourself, and build enough of a life so you're not reliant on him for your sense of self.