i don't think it sounds strange. i think you were careful about meeting him- you hadn't met anyone before and you waited a considerable length of time to meet him. plus, u didn't express feelings for him before meeting him. it's not like you've come out and said you're completely in love with him or anything, i personally see it like, you've talked to him a lot (i'm guessing!) because when ppl talk over the net, they only have that to do, TALK, so you can get to know a lot about someone, and now you've started forming a real relationship (whatever kind that may be, friendship etc).
i think it sounds like the bubbly feelings u can get at the beginning of any potential relationship. just bcos u met him on the net doesn't make your feelings 4 him tainted/strange etc in any way imo. i agree in just seeing how things go. good luck. x.