a member

I have this long time online friend that I never met in person (I know hes not a fake account because we already chat in video call), recently he said he used to have a crush on me and I said I also felt that way and on impulse I planed a trip to met him in person. the problem is I never actually dealt with this kind of feeling before so I get really flustered and don't know what to respond whenever he flirts with me...and now Im afraid of messing things up, I thought multiple times to text him about it but I feel this is somenthing to say in person, so what should I do? talk to him now or wait untill we meet in person?