So, I just accepted a new job position today, and I leave for a 2 week training course in two weeks.  Originally, my roommate was going to watch my daughter during the week, and I just needed to find someone to watch her on weekends.  I have a sister that lives about 3 hours away and agreed to take her for the full time I am gone.  My sister has 3 kids, a nice house and is willing to watch my daughter free of charge.  I would just have to drop her off and then pick her up later.  They live about an hour outside of a very large city, and requently take trips to visit zoos, muesums and the like.  

I explained the new arrangment to my roommate and she flipped her fucking lid.  She is begging me to let my daughter stay with her.  Stating that she doesnt want to be left all alone for the two weeks I am gone.  She said she would use her vacation and sick days for the weekends and such.  She doesnt have a car, so she would have to get up extra early in the mornings to catch a bus to drop my daughter off at the daycare she goes to, then would have to grab another bus to get to work.  She is usually the one to pick her up in the afternoons, since I used to work nights.  

The real issue lies in the fact that I already made this deal with my sister, who is now really looking forward to taking care of my kid.  Things with my roommate and I have been very stresful lately as both of us have been working at jobs we hate, plus other personal issues.  

How do I make it clear to my roommate that I would rather my kid stay with my sister?  I've told her that I am not doing this as some sort of "punishment" to her.  Just that this new job and training are very important to me, and I would worry less if I knew my child was in capable hands.
user
Roommate and I have a 2 week gap in our lives, she wants to take care of my kid for the two weeks. I've already made the deal with my sister. She is now also looking forward to taking care of my kid for the two weeks. What do?
assistant
So, I just accepted a new job position today, and I leave for a 2 week training course in two weeks.  Originally, my roommate was going to watch my daughter during the week, and I just needed to find someone to watch her on weekends.  I have a sister that lives about 3 hours away and agreed to take her for the full time I am gone.  My sister has 3 kids, a nice house and is willing to watch my daughter free of charge.  I would just have to drop her off and then pick her up later.  They live about an hour outside of a very large city, and requently take trips to visit zoos, muesums and the like.  

I explained the new arrangment to my roommate and she flipped her fucking lid.  She is begging me to let my daughter stay with her.  Stating that she doesnt want to be left all alone for the two weeks I am gone.  She said she would use her vacation and sick days for the weekends and such.  She doesnt have a car, so she would have to get up extra early in the mornings to catch a bus to drop my daughter off at the daycare she goes to, then would have to grab another bus to get to work.  She is usually the one to pick her up in the afternoons, since I used to work nights.  

The real issue lies in the fact that I already made this deal with my sister, who is now really looking forward to taking care of my kid.  Things with my roommate and I have been very stresful lately as both of us have been working at jobs we hate, plus other personal issues.  

How do I make it clear to my roommate that I would rather my kid stay with my sister?  I've told her that I am not doing this as some sort of "punishment" to her.  Just that this new job and training are very important to me, and I would worry less if I knew my child was in capable hands.
user
Roommate freaked out when I said I wanted my child to stay with my sister who lives 3 hours away while I go down south for job training.
assistant