It would depend on how long you've know each other online, what her plans are (for meeting individuals on the website, etc.) That website is generally for those seriously interested in finding a compatible partner (possibly for a real one on one relationship at some point)
You may want to give it some time, do what you have been doing so far in regard to communicating via the internet. Possibly consider a telephone convo and get to know each other better. If she is still keeping in touch with you, then she is interested. You may be wondering to what extent. She may not know that herself yet.