I'm going to argue with my roommate for having long phone conversations late at night
Do your roommate's late night call bother you?
Yes, the voices are quite loud and it doesn't stop when I tell him to do so.
That is inconsiderate by your roommate, he should be more quiet late at night. I suggest however having the conversation in a more relaxed manner as not to start an argument.
I won't let him get away with it. I will make sure he change this behavior. I excpect to have a more pleasant stay.
I understand that and it is your right. I am just cautioning such inflammatory language, be calm and talk nicely.