I'm scared to ask him to become official

J

I met a guy on tinder and he must be the sweetest person I've ever met. We've hung out a few times and I can't see us being only a hookup because we talk to often and have a lot of fun when we aren't hooking up. I'm surprised that I'm scared to ask him what he'd like us to be. In the past I've had no problem asking but I'm scared of losing him because I'm excitable.