A bit of background, I am a stepmum to a 9 year old girl and have two younger girls (age 3 and 1), all 3 girls have the same dad - my DH.
SD parents split when she was 2, I have been in her life since she was 4. We live quite close to SDs mum and have her 50/50, the second half of every week.
My worry is how my 3 year old feels when SD is not here. She talks about her all the time and is sad that she is not here. Whenever she gets anything nice on the days SD isn't here she will say 'I am so sad SD isn't here to have this' even though I do try to explain that SD will be having a similar nice thing at her house.
I do feel guilty as when I got pregnant I thought about how lovely it would be for SD to have a sister, but didn't comprehend how hard it would be for my daughter to have her big sister come and go for half of the week. Probably partly because SD has never been bothered by her routine and never struggled with missing her mum or anything like that.
Anyone have any advice as to how to help my 3.t year old feel okay/accept the fact that her sister isn't here for half of the week?