Is it normal to be happy after flunking?

This weird numb sensation. I dont feel happy and well neither sad. I hate my close friends worrying about me so i avoid them, and well, i really dont have an urge to talk to them about anything that troubles me or them, its too much nagging. For me things havnt been going well, because one, i flunked a semester because of which il be pretty much held back a year. A lot of money went into it. so i feel guilty. but at the same time im happy that i did flunk :/ It gives me a chance to start over and get away from my annoyingly overcaring friends. I tried smoking up once; its a big deal for me because i come from a conservative society and family but i need to get an experience from life you know? but my friends are all worried sick. i dont know i think they think its some thing i did out of depression. So, now i get a break from over protective friends. i feel guilty for failing, but i cant help feeling relaxed. my head was messed up this past year?

Is it normal to be happy after wasting your parents money and failing? :/