Renee your son also said he didn't want to talk to you
sometimes you have to accept things
this phone call had nothing to do with your son and everything to do with you contacting your ex and then even his new wife?!?!?!?!?!
I have never heard of needing an attorney to file a civil suit since the paperwork to do so is free and online. You simply need to fill it out. You can also fill everything out and then go see an attorney for a fee consultation (which every attorney does) and have all your questions ready...get them all answered for free that way.
Your son knows how to contact you write him a letter and mail it and then