H - My birthday was 3 weeks after BD and my W (at the time) called me on the phone and asked if I wanted her to be there. It was hard as hell but I knew I would not enjoy myself with her in my presence so I politely declined and told her that I would just like to spend it with our daughters.
Truthfully it felt very weird but looking back it was absolutely the right thing to do FOR ME. LH is spot on.