"This morning i was asked to have dinner on my own after work by W. Later i found out W,OM, her sister and my kids left for dinner elsewhere. I guess OM will come to my house despite my warning."
Planet, let me just offer my view from the outside and maybe others will have a different view.
Why does your W gets to decide who you're going to dinner with? Planet time to lead this ship and tell her you are taking the kids with you for dinner. She can go join you if she wants but you want to spend some time with your kids.
Planet, OM coming to your house is one of your boundaries start enforcing that boundary. Search and read up on boundaries here. Maybe someone can explain that better. But your W will not respect you if you keep letting her trample over you.
That's just my POV think about it.
Newman
me40; W43 M18; T~20 D18; S13 & S3 bomb 5/9/11 EA busted 4/30/12; 9/4/12; 4/29/13; 6/10/13 same OM
Separated 4/1/14
"Even a flicker of light will shine through darkness-12/25/2012"....better days ahead.