good roommate has turned bad - advice needed
My boyfriend and I (ages 23 and 24) rented out our extra bedroom to his 22 year old cousin when she needed some extra help. At first, she paid rent on time, she fed herself and she was very respectful towards us when it came to sharing, privacy and being quiet.
Something changed... it's almost like she's an entirely different person. She broke up with her boyfriend last fall and ever since then she's been a non-stop party animal. She drinks everyday and she goes to the bar several nights a week. She comes home late and loud on weeknights. She has no more respect for us in our home, she constantly hogs the one bathroom we have, and she invites guests over all the time often late on weeknights. She has become increasingly irresponcible; in the last month she has been involved in one domestic violence episode at her friends house, an at fault car accident, she has run out of gas on the freeway several times. Everytime something like this happens, we get a call (be it 2 in the afternoon or 3 in the morning) to come and help her out of the mess.
She hasn't paid rent in 3 months. She's stuck in the payday loan cycle and states this as her reason for not being able to pay rent. She has never paid utilities (she needed help when she came to us so we only charged rent without utilities), however she uses them just as much if not more than my boyfriend and I do (sometimes 2 showers a day, internet all night long, uses too much heat in bedroom, leaves lights on all night). She relies on us to feed her everyday, and rather than eat in front of her we buy enough to share. She works full time but insists she doesn't make enough money to make ends meet, but her only bills are the payday loan and rent. Her dad pays for her cell phone, she has no auto insurance... however she still has money to buy a mocha and a pack of smokes every morning.
We (my boyfriend and I) both feel overwhelmed by her at this point and would like to kick her out. We're having problems doing this because at this point we don't feel she is responcible enough to take care of herself. Being young ourselves, we don't feel it is our responcibility to take care of her. Being family, we don't want to kick her out to live on the street (her parents cannot take her in for their own personal health reasons which will be respected).
Any advice would be greatly appreciated. I basically want to get rid of this annoying roommate as painlessly as possible, if possible at all.