Don't file, why would YOU file if YOU want to saev the marriage?
I would make it CLEAR to her if she's gonig to use that phone to get OUT of the family home.. don't sit tehre miserable and let her talk to him in your own home, that's insulting...
I did it too, don't let her get away with that... If she says too bad you make it IMPOSSIBLE for her TO call him... you keep the pressure on her until she exits teh home...
Do NOT make it mean or viscious... Tell her you and your family deserve RESPECT and if she can't find the MATURITY to extend that then she can get OUT Of the house and act like an infant someplace ELSE....
Don't sit tehre and let her send text messages and phone calls...
If she PERSISTS, get a cell phone jammer, they are like fifty bucks and EASY to use