I don't think I have posted on your thread before but I felt compelled to after reading about your relationship with your H. My H also spent time with us over Christmas and New Year as a family and I know a lot of people would say it was cake eating on his part however it really made our Christmas to spend it all together. Although he slept in our spare room he came in to my room on Christmas morning so D could open her stocking presents on the bed as she had always done.
Christmas Eve was the first time that H had stayed over since he left in May and this was a real breakthrough. Although we spent NY Eve apart he took us out to lunch on NY day and then stayed over that evening too. My H has also agreed that staying over more often may help towards rebuilding our relationship. Just taking baby steps at the moment.
I hear you on the anger and resentment when H is not around, it's exactly the same for me. When I'm not with him I spin badly and just before Christmas and NY we argued a bit over text but when he came over you would never have known!
I've told him that my goal for next year is for us to be back together at Christmas because we spent so much of it together anyway!
Me - 47 H - 45 D-16 M - 6 years Separated - May 16
Don't leave me behind can't you see me I'm shining... (Years & Years - 'Shine')