Help, I am taking the breakup very hard?

My boyfriend said "we need time" because of a joke i said that he didn't like, the worst part is he told me that over a text message and never called me afterwards. It's been almost 2 weeks and i haven't heard from him, which leads me to believe that he doesn't want me anymore. I cannot believe he would hurt me so much for a joke that i apologized for many times. we have been together for 6 months and he told me things that i believed and ended up falling for him deeply unconsciously. He would always talk about marrage, kids, buying a house together and told me I was the good woman he was looking for, and i was the type he would marry. I called him many times and he wouldn't answer, he ignores my texts and my IMs. I left a message crying on his voicemail telling him that Why can't he at least call me and confort me? He is totally ignoring me.I have lost 8 pounds in a week. I cannot eat or focus. I even have thoughts of suicide.how do i cope with this? I think i love him.