Steps:1. Communicate openly with your roommate. Agree to talk about issues before they get out of control.
2. Accept that sometimes people will be in a bad mood. If she says she doesn't want to go do something with you, don't take it personally.
3. Decide early how
rent and utilities will be split, and what to do if one person can't make
month's payments.
4. Establish rules about food, company, chores, noise, tobacco and alcohol use, and parking. Make sure each person's expectations and responsibilities are clear.
5. Respect your roommate's right to privacy and her possessions. Always ask before you borrow anything, no matter how small.
6. Knock before entering her room.