We are collecting a 4 month old puppy this weekend, my DC have picked out a name for her they have always wanted to use for a pet. The argument DP and I are having is that the name is actually his ex partners first name too. It wouldn’t be an issue if it wasn’t for the fact he has a 13 year old son with this woman. I’ve never met her nor intend to (long back story), it may be hurtful to my step son but in general I don’t see an issue as it’s a common name anyway and isn’t being used maliciously. DP wants the DC to change the name but I don’t think they should have to. Who’s being unreasonable?