Trying to stay healthy despite depression

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so a few weeks ago i started with mfp...loved it, lost three lbs. since then my life has gone into a complete downward spiral. cheating, drug abusing boyfriend, having to pack up my life and move it in a matter of hours, having to go back to my house and get the rest of my stuff, having to leave my job to get away from it all. i cant eat or sleep. im losing weight rapidly now, but this isnt what i wanted. what do i do now?