DP has two children with his ex-partner. He sees both of them, though not on set days and times because DP works shifts but also bc they are teenagers who want to lie in bed all day, see their mates/gf's etc.
DP has just told me that as DSS has decided he would like to see DP at 1pm tomorrow (DSS called just now) rather than 2.30, DP cannot attend my birthday lunch, and I will just have to deal with this. I feel disappointed and let down. It's a big family meal, I have had to cancel his meal (pre-order), but it also means that he will be absent.
I am upset because I wanted him to be there, this isn't the first time I have had to cancel things (holidays, meals, plans) because of one of my DSS who will throw a tantrum if DP can't be there on command.
Is this just part of being a step-parent?