<human>: Can you give me the gist of the text in a nutshell?

I signed a lease with my boyfriend, best friend, and her fiance back in August for 6 months...3 months in they literally wait until me and the boyfriend are gone, pack our their things and leave. To China. They have left us no money for this month (it"s past due by 4 days for their part now) or the rest of the lease. They did leave a bunch of their things. Took my 42" plasma flatscreen, though. Had his parents go in our apt, take it, and sell it for $.  When I have contacted them through email They respond with vague answers, all to the tune of "I'll send it...". I don't believe them. Fiance on ccap appears to have a record, owes 11,000 to a different landlord. He also left 2 days before an apparent court date for a dui with open container violation. Found the ticket in his room. 
Landlords have not specified whether we will be responsible for covering their end yet, hoping that they would step up. I cannot afford to double my rent and survive. These people abandoned the apartment and seem to be breaking our implied agreement of splitting the rent 4 ways. 
What the hell do I do? I have been in touch with my landlord throughout this, letting them know what's going on, my ex roommates' refusal to communicate clearly and assured them we do not intend to break our part of the lease and will continue to stay here. I need help, Reddit! please advise. I can also do into more detail if necessary.
<bot>: roommates abandoned lease halfway through, moved to China behind our backs, don't seem intent on paying. Cannot double my rent to cover their asses.