They don't/won't talk (to each other) after the argument

[White Hat]

Suppose two people have had an argument and there is no communication between them at the moment. Do you say
They don't talk, They don't talk to each other or They won't talk, They won't talk to each other or They won't speak to each other? What do you say when something like this is going on?
Thank you in advance.

 

[bhaisahab]

Suppose two people have had an argument and there is no communication between them at the moment. Do you say
They don't talk, They don't talk to each other or They won't talk, They won't talk to each other or They won't speak to each other? What do you say when something like this is going on?
Thank you in advance.

All of your suggestions are OK. You could also say "They are not on speaking terms (at the moment)".