ACJ, I think that doing the reflexology thing is a move in the right direction.
You can't force your kids to wish their dad a happy birthday. and you cannot force them to buy him a present either.
You did good by offering to pay for a present from the younger ones...they are old enough to say : yes, let's buy that for dad!"...but since they haven't...oh well.
I have no idea if he is ignoring you or away on holiday. If he cannot afford it, don't see how he can go, but weirder things have happened.
I know it is hard not to fall back into old cycles but do whatever you can to not fall into them...I too have gained weight and become depressed and/or moody. I am working hard to get out of that cycle by becoming more physically active...not hard to do as the weather is cooperating!!
Praying that you will feel better in the coming days!
Smooch! Valentine
Aug '06: H moved out July '08: H had a kid with the OW May 12 '09: emancipation day
"Life moves pretty fast. You don't stop and look around once in a while, you could miss it." -Ferris Bueller