When you flirt with a girl and she doesn't flirt with you do you keep doing it or when do you stop?

there's this girl i met online and i was flirting with her and she wasn't really complimenting my looks but she didn't me flirting and she kept talking to me for a long time. we met online. we never actually met eachother. she's very pretty and i'm a pretty good looking if not average. i mean i had some very pretty think i'm attractive but yeah.

i wonder how those ugly guys get pretty girls? i mean would the gorgeous girls flirt with them in th estarting? cuz if their ugly wouldn't the attraction appear later?When you flirt with a girl and she doesn't flirt with you do you keep doing it or when do you stop?
shallow...those ugly guys, such as my emo self, are the ones who find eternal love cause we search in the right places, the heart. you base love only upon apperace which fades with time...you will never satisfiy your thirst....

but i came to give advice, the best i can say is that you have to be carful not to push it to far with girls, the key is to know where is far...