I moved in with a freind and her family 3 months ago. they didnt want me paying rent so i could save $$...?

now they r asking for 200 month not because they r just a lil behind, behind...but b/c my freind refuses to work to help support her own family. i already buy food for house, do my own chores+ some, repairs n routine maintenance on my truck, my own finances left in texas b4 moved here. I appreciate tem helping me, n i dont mind helping them. but not b/c she doesnt want to support her own family. how do i approach them with this without totally pissing them off? it a long walk back to texas from here---no where else to go.