Aries Woman dating a Leo Man?

I have been dating a Leo man now for the past 2 months and so far he has to be the most thoughtful and attentive man that I've been with for a while now. His best friend who is also my co-worker introduced us and we really hit it off. On Friday we went for dinner and a movie and we kissed a great deal, and for the first time we held hands which I thought was sweet. In my mind I really think things are progressing. Now it's Sunday and I haven't heard from him. Should I be worried or is he just busy? Help! Haven't been with a Leo man and I don't know what to do? Should I call or text? Advice is appreciated especially because I really feel I have a good thing going for me.