You don't want to see him or talk to him, but you hoped he would want to come to dinner with you guys and you continue R talk with him? Makes no sense. I would hope that he would want to see D8 of course, but wouldn't it be tense for you all to do it together?
Isn't the time apart from him less stressful than attempting faked family stuff? I think it is. I understand you miss him, want him back, but your H isn't the one you love anymore. Take care, go dark, and enjoy your children.