I've just wrote reply and sent it and then I saw your advices... Here's how the conversation developed:
Me: Daily by working day or weekend?

Nah, seems like people are loosing their sense of humor by years past

. (note that we write in our mother-tongue language, and it's Serbian)
Her: (written in english) by day, working day, weekend, whatever

). (continues in Serbian) Seems I've lost it, come on, sell me some of yours, like 300g (don't know how much pounds, but it's one third of a kilo). You have full shelves of it

))
Me: (in English) So... You speak English... Nice, but that ain't gonna bring your sense of humor back...
(in Serbian) My shelves are full of gramophone records, books, and some other stuff... 300g? Wow, you seem like pretty straight forward person considering you want that much from me, and we just met...

)
(in Spanish) p.s. No vamos a competir con el conocimiento de lenguas extranjeras, (in French) parce que je suis gent et ne permettra pas une femme à perdre...

(meaning I don't want to compete with you with knowledge of foreign languages, because I'm gent and won't allow a lady to loose)
Her: This is free land, I can demand how much I want, 300g is so small amount, I can see that you produce that every day

)) You have records?! Would you like to have music cassettes too? I have 400, I can give you for free, cause I don't know what to do with them, and it's pity to throw them in trash. Or we should make a compensation - cassettes for humor?!

Hey, multilingual, I don't understand the third paragraph, I understand just a few words, but the whole message, nooo!

Bye-bye
So, I agree with you about what she's thinking, but the damage is done, so let's try to solve this one out. You can see that she gives me shit test, after shit test... I have difficulty to understand if she's writing sarcastic all the time, or she is really hooked. So I was writing, let's call it - multipractic messages that could fit in both cases. I put some DHV's, trying to be C&F, but this bye-bye confuses me a lot... I think that's another shit test, but if she was writing sarcastic all the time, it could mean like I'm bored, bye...
I
won't reply anything to her last messages until I hear your advices... Cause I like them very much, but my patience is my weaker side... Especially now, cause I hurt my leg, and have nothing to do all day...