So I was in the library and sitting quietly in one of those study tables; I had the usual study materials (notes, pens, highlighter and a text book) on the table; decided to go to the loo and afterwards, went to the next floor to find some books for references. Went back to the study table and saw a girl was sitting there and all of my study materials have been moved to the next table
I took my study materials from the next table and said to the girl, "I was sitting here" whilst taking my study materials from the table. The girl casually said, "oh, you did?", pretended as if nothing happened and continued doing he work or some sort.
I'd be OK for her to just sit there if she just apologies (even if it's half baked) or at least made it seemed that she did something wrong, but ... I didn't get anything from her. It is as if nothing happened.
I just took my materials and sat on some other study table. After a few minutes of settling down on the current table (which is not far from the prior table), she said from the table "you can sit here if you want". Feeling rather annoyed, I just said, "No, you can just sit there if you want".
I'd believe I was right to feel annoyed or is there some common courtesy that I missed out?