Maturity is overrated

I hate being mature. Why can't I blame someone else for something that has gone wrong in my life!!! I had a crush on this guy for 3 years. Introduced him to my friend. Bata bing bata boom. They hook up. And I can't blame anyone. Can't blame him 'coz he never reciprocated my feelings (though he knew how I felt). Can't blame my friend. She tried her best to ignore him (and failed completely). Can't blame myself because how the F*** was I supposed to know this would happen! (F******G dipshit that I am). So tell me who do I blame? This sucks!