Have you met? Spoken on the phone?
Love is a nebulous thing and everyone experiences it differently, these threads are full of sensible people remarking that you can't fall in love without meeting, and I agree with that caution, yet people do sometimes fall in love via message or online and it continues when they meet. I'd imagine they're the rare ones, but it's not beyond the realms of possibility.
I would exercise caution and make sure you have plans to meet asap. Treat it as an enjoyable diversion that may not amount to anything. Don't get carried away!