Hello! Longtime lurker, first time poster. Sorry for any formatting issues.

So, I recently started going on dating sites and putting myself out there after a long period of nun mode. I found a guy that I'm very interested in, we exchanged a few messages which I was really enjoying, and then.... nothing. It's been almost a week. I know I should just let go and move on since we haven't even met. But, I'm struggling with that. Would it be presumptuous of me to send another message to say I'm still interested? If not, what would be the best way to approach this?