Is it that because I trust people too easily, people always take granted on what I've done for them?

I just knew her true colours recently. I thought she was a true friend. But I don't know what went wrong, right after semester break, she began to act weirdly and shouted at me at times. I often share what I knew (though I'm not smart in studies, but I'm good at finding things), she strayed away from me. Is it why you was trying to gain my trust during the first sem, and dumped me away after you learned all my secrets without the need to buy books?

I don't know is it because of the misunderstanding about CA, you're still angry with me, thinking that it was my fault for giving the wrong info?But it really wasn't my fault. The lecturer told us at the very last minute. But, you thought I hide it from you and purposely tries to harm you. Well, that's fine.

And thanks for showing your true nature to me this early. And thanks for teaching me not to trust anyone too easily. Especially people who I knew for just a few months. Thanks for all.

Anyway, sigh. I failed one of my mid term. I WANT TO CRY :(