I get where you're coming from. I won't budge due to the situation. D4's bio Dad only comes on the scene when his relationship status or financial situation changes. He hasn't seen D4 since June last year even though he's been to town since then, knows how to contact us and knows where we live. I told my wife that many people have done the right thing (my wife, myself, family and friends, both our employers, etc,) so I wasn't sacrificing my birthday or swapping shifts at work to accommodate him. The new date that has been set occurs after my latest work roster so I can tell my boss I am unavailable that day without putting anyone out.
Honestly, D4 would be better off without him in her life. She's a beautiful girl. I fear the day she understands the situation.
Me: 31, W: 29 T: 4 M: 2 Kids: 3 (SS: 7, SD: 4, D: 3) Separated, still living together: Nov 2013 Separate bedrooms: Feb 2014 W working away; kids with me: Nov 2014