When is it ok to a call beautiful?

I got a girls number about a month ago and we text everyday if not every other. We only hung out twice because school and work take up most of our time. The first night we went out which was about 5 days ago i told her to text me wen she got home so i know she got there ok. That night wen she got home she told me i was realllly cute, so i told her thanks anything id say about u would be an understatement. She really didnt get wat i meant so she asked what do u mean? I said ur a very beautiful girl an understatement means ur beyond that and more. She said aww thanks and that i was the nicest guy shes ever met.. i want to text her saying "soo when can i see u again beautiful?" Is that a good thing to say or is that just being creepy now. Any girls advice would be greatly appreciated. Thanks