Broken heart.. someone please help me out.?

Me and my girlfriend of 1 year and 4 months have been great together, she is the best girl that i could ask for. Recently i lost my job, and that put a strain on our relationship, i slowly became super clingy to her, being just a concerned boyfriend, rather than being myself, and her boyfriend. on monday she told me she didnt know whether or not she's in love with me, and that she is unhappy, so we are taking a break. i need help as to how to be strong for the time being, i asked a friend of hers why its happening, and she said that i need to do a little growing up. as long as i get my stuff together that she will come back, because she is confident that nobody will love her like i do. and i can guarantee that as well. im trying really hard to be strong, but i havent been eating and its hard to get my mind off of it. i just get stressed that we wont wind up together, because she used to have pictures of me and her all throughout her room, and replaced those pictures of her and her friends, including the collage i made her for christmas, she took everything that had to do with me and put it away. should i be worried that she is trying to forget me? or is she just taking her space that she asked for? because she told me that on our break she doesnt think that we should talk at all and just wants some time and space to clear her head. she hasnt taken off our picture on facebook, or hasnt changed her status on myspace to "single". i just need help on how to relax over all this and i really want to get rid of this feeling in my stomach, i have had a broken heart before, but i have never been so in love with a person, so its different than any other heartache. i really just want some advice to make myself ok, because its really hard living without her, and it seems as though she's living just fine and i'm torturing myself. And i keep hoping and praying that she doesnt like life more without me, and winds up leavin me, after i've been hanging on. i know i could move on, but i want to hang on to everything because its a break, not a beak up. someone please give me some advice. i need some help getting through this tough time. thank you.