things that I don't understand myself

#1. When a friend asked me to lend him some money, I just gave to him without questioning because I knew that he has his own reasons BUT why when I need help, he questioning me & judge me?


#2. When a friend asked me to accompany him to eat something anywhere just because he was hungry at the middle of the night, I just agree & forced myself although I'm kinda sleepy at that time BUT why when I asked him to do the same thing, he has a lot of excuses?


#3. When a friend asked me a questions or talking to me when I have a lot of things to do, I still chatting with him BUT why when I asked him a question or just wanna talk, when he was busy or online-ing, he totally ignored me?


#4. When a friend post something inappropriate about me in Facebook for the whole world to know & put some kind of bad adjectives/titles to me without knowing me more further (judge me!), I'm still okay with that BUT why I cannot post something like that which is i do not have that gut like everybody else?

p/s: Maybe I'm the problem itself.. yikes!