Recently I met a guy on an online dating site.
I don't know why he'd look at your profile a few times but personally I don't think it means a thing. I look at all kinds of things online and really wouldn't be able to explain why if I was called on it.
unfortunately this will happen a lot on OLD. talking to too many people at once, or just no general interest, or just went on a date with someone else. Who knows. Just move on.
I can't tell you how many guys i chatted with or texted through OLD and then they just disappeared.
He probably met somebody else and kept you as his back up for now.