I have no say either way so I know that really my opinion does not count for much but I'm just curious to know how others would feel about this.
Dp's ex and mother of his son has recently married her partner and father of her second child. In the months before this she was being quite forceful about getting DSS to call her STBDH 'daddy'. Dp wasn't very happy about this but conceded that if DSS wanted to then he could. DSS is 9 so is able to decide for himself.
Now she is asking dp's permission to change DSS' surname - her, her DH and her younger child all have the same surname and DSS' is double barrelled. Dp is on the birth certificate and has parental responsibility although they were never married. He has contact every week and pays over the minimum maintainance payment without fail every month so is very much an involved father. To my knowledge this is not something that DSS has expressed an interest in or cares about at all so is something that SHE wants rather than DSS.
Aibu to think she is BU and to feel like she is attempting to cut Dp out of their lives? She has also been sending Dp videos of DSS doing activities and can be heard in the background saying things like 'say Hi to [new DH's name]' and 'I'm recording a video for [new DH's name]' - no mention of Dp at all. Aibu to feel like this is a bit mean?