I can't sleep

So Steve went out tonight with a friend. They just went to Happy Hour, now here it is almost 3:00am. He called at about 2 and said he was at the friends house and was just going to spend the night. I said "absolutely not" take a cab home if you can't drive. So now I'm up waiting on him cause I'm worried about him. I hate this feeling. I really don't mind if he goes out - he doesn't do it that often. When he said he was going, I just said "I'd rather if you don't stay out all night", he said he was just going for Happy hour and then would be home. He gets so mad at me if I stay out late. I hate this. Anyway, just a quick vent. Nothing really to be mad at - I'm just worried...