SERPENT7 Said:
To all who hate your roomates:
In my experience, this often arises from a lack of communication. Be a reasonable adult, and expect the same from them. If they mis-behave, or invade your turf, just be honest, and communicate your feelings fully and clearly. (Most people are not being douches on purpose, just being inconsiderate) If they cannot handle it, that is their problem. But if you say nothing, well, that is your problem.
Also, this issue might be compounded by a little territory aggression.
Just something to think about.