I think this is the nature of edating. It is different - when you are going out on a first date with someone that you met in real life, you have the butterflies because you are excited about the date because you already know you want to go on one. With edating, it is different. You aren't really sure you are actually going to like the person so you approach it cautiously or distantly.

I think it is like DancingFool says, if the first "meet" goes well and you find that you really enjoy this person, then you have the butterflies for the next date.