Today was terrible

Well, wow today was a fucking horrible day. After school we started rugby, so I go to the change rooms to get changed, after practice not realizing I accidentally forgot to pack my jeans, which contained an Mp3 player, Deck of cards, necklace from girlfriend, wallet, cell and gum. I come back to find that half my belongings were stolen... fucking great. Everything was laid out everywhere, so I looked around and the gum was near the entrance, the cards in the box thrown in a corner, wallet laid open with money stolen, no necklace or cell phone. The weirdest thing was though he left the mp3. How do i know its a guy? it was in the guys change room. I'm not even that pissed about the cell its more the necklace it meant so much... I don't want to tell my girlfriend but I have.