Bit of background :
DB1 has always been useless about keeping in touch, never has any money and we only really see them at family dos (they live about 4 hours drive from us so not really do-able as a day-trip). I've always bought them a Christmas present, sent them flowers on their 20th wedding anniversary etc and generally tried to maintain contact but I'm now fed up.
DD2 was born earlier this year and I haven't even had an email acknowledgement from DB to say congratulations or some such like. I can cope with the fact that DH and I never get birthday cards etc but it breaks by heart that DD1 and DD2 are completely ignored (they have met DD1 once) whilst I have to read status updates on FB from DSIL about the presents they've bought for the nieces and nephews on her side of the family.
I have now hit the stage of cba in terms of trying to keep in touch. I have never expected them to give the DDs presents or anything but just a quick email asking how they are or something would mean the world to me. I have decided not to get them a present this year (I have sent things to their 2 kids so I'm not ignoring them) but am having a crisis of self-doubt over whether I'm being reasonable...