interesting story dude. Im from Bern, 27, read 3 books so far.
I just read a mail from RooshV who worte BANG, also a PUA book im goin to read next. he wrote soemthing like this:
after the first meeting, you need to make sure that you meet her again pretty soon, about whitin a week. why? simple: if it takes longer, her interest in you will automaticlly drop by time. makes sense. of course you dont want to rush and ask her out as soon as she added you on fb, that would sound needy, so you did so far good. i would probably ask about after 3-5 days, if shes in town and has time to chat.
dont worry too much about that facebook and writing stuff, its quite simple. ive been in online gaming for over 10 years and i must say if dont write, its so easy to get dates.
so imy advice is, yes already this weekend. if she has interesst you, no need for her to decline, right?
how you should act? same as if shes single. be cool, but show interest -last thign you want is drop into friendzone! so sooner or later, you have to make a move. if you do the step by step touching with shoulder, hug, aso you find the right time automatically =)
my few tips. dont make me responsible if they dont work
btw your english is great! keep up!