My entitled sister burns a bridge with me in an unexpected way and then wants me to maintain her

and her unborn baby's needs. I'm a 27 year old female and I moved to the United States almost seven

years ago and I have two half sisters from my father's side, all from different women. We used

to be very close and despite both of them being illegitimate, I shared with them part of what

little inheritance I got from my grandparents. They never recognized them and left them nothing.

Two years ago my sisters also moved to the United States. The middle sister, who's 28 years old,

Mary, got a company to host her with a work visa. The eldest sister, Karen, who's 30 years old,

got a student visa and moved in with me since I was already working and earning a good salary.

The arrangement was that I would pay bills and she would get a job at the university

since she is not allowed to work outside and that was her spending money. I would cover all bills

and food. The only thing I asked was to help with some minor chores. I have a dog in a cat and I

told her she still had no responsibility while she had school and work. It was fine since I work

from home but I have a step family that helped me maintaining my home, mostly because I'm the

free babysitter for them. Pretty sweet deal for a student, right? Well apparently that wasn't enough.

While she was in school, Karen met Ken. I knew Ken from the time I went to university. He is a

creep but I thought harmless. Karen was head over heels for him. I warned her Ken had a bad

reputation at the university but she didn't care. She's a big girl so I let it be with the only

condition that Ken was not allowed in my place. Well, COVID hits and my hours were cut.

Karen's school goes on pause and she loses her campus job. Because of all of this,

we moved into a smaller apartment. I took a second job and did some freelance on the side.

Needless to say, I had no personal life. I am dating someone but he was also swamped with

work and bills so we barely met each other. During this time, Karen and Ken apparently got closer

...