That doesn't necessarily mean her English is bad. Maybe something just came up and she was no longer free on Thursday. I don't know about the tomorrow bit. Does she want to meet at San Marcos or can't she meet because she's going to San Marcos? Well good luck with selling your game either way though!
Oh and if I were in your shoes I'd just sell the game to a store or something. It's quick and easy that way, no hassle. I mean, if you sell it on facebook then there's always the chance of somebody just messing you around regardless of their English ability or lack thereof.
I used to sell to a game store they always give me chump change like If I sell Kingdom hearts 3 for 40 they'll try to buy my game for 20 dollars instead or worse gamestop buying it for 12 dollars I also tried open swapmeets they offer 2o dollars too facebook/ebay/amazon are better options get 20 dollars more sell it for 40 and not lose huge from buying it for 65 dollars at launch
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