Hmm tough one Kash !!
I would say, you've met him trough an online dating site, so like you, he's (was) looking for a companion, friend, relationship. So I think it's kind of normal to know, what he thinks and how he feels about what you're having right now.
Maybe it's not a bad idea, telling him that you feel like you've known eachother for a longtime and you feel happy with that (should make him comfortable as it is kind of a compliment) and ask him what he thinks and feels about that.
A bit less 'pressure' for him compared to the 'direct approach', but I think this could trigger a conversation, which might up ending about knowing what your relationship is at.
I hope I'm making sense here ;)
Anyways, have fun and I hope you find what you're looking for !! :heart:
Groetjes, Cheers, Gruessen,