I'm going to leave my roommates when they need me
Why do you want to leave your roommates when they need you?
I'm not going to waste my time on them.
You should talk things over with your roommates. You shouldn't just ditch them. They need your help and you agreed to be their roommates.
Fuck it, I'm out.
It's irresponsible to abandon your roommates when they need you. Instead you should let them know what your plans are in advance. Being intentionally hurtful to others will only come back to hurt you in the future.