I'm moving away from my roommate.
Why do you want to move away from your roommate?
I wish to have my own space, away from the their constant whining about school.
It's understandable to not want to live with someone you're unhappy to be around, but you should tell them ahead of time that you're moving out. That way they can start searching for a new roommate to fill your spot.
I think it's better to surprise her. It would be so poetic for me to actually not tell her and move out.
What if someone does that to you? I guess you won't be ok with it. You want to move out it's fine but just let them beforehand.