Online Game is all about Numbers, its illogical to invest too much energy into one girl because a fit girl online will be getting 20 messages + a day, you are just a number and you are disposable-- so just like trading stocks/shares you need to set the level that you are willing to let your shares drop to before you sell and bail out.

I have online gamed for a LONG time, met easily 150+ girls, shagged a good 60 of them.