I think
@PauperVita has a solid theory. Ethan has always been Matt’s sidekick so it’s not a big surprise he would file for a restraining order to do Matt’s bidding. Faith getting sucked into the drama, is weird since she supposedly lives hundreds of miles away from mom.
Faith always seemed to resent her mom more than dad, so it’s not exactly shocking. I could see her being tired of her parents drama and maybe Arianna just keeps trying to pull her into it, but it seems more like she’s Team Matt and engaging in the drama. We do know Faith enjoys drama and chaos which makes sense now given her upbringing.