My DB's wife is a complicated sort of person and they don't have a great relationship. They had several rounds of IVF over 8-10 years and finally had 2dds, the second born recently. They have given their second baby the same name as my youngest dc. Well, not the same name exactly, one letter is different (think Helena vs Helene).
My DD isn't too bothered about it, at first she thought it was a compliment but apparently, it wasn't! SIL just 'always wanted that name'! DB tried to discourage her but she was apparently adamant.
The baby is here now and very cute and we all love her, but I am secretly seething about the name. My DP are already getting the dc muddled and DM recently sent my DD a birthday card with her name spellt wrong - ie using the slightly different spelling of her cousin's name.
My DPs are elderly, happy and proud about all their DGC and just want a harmonious family life so they have changed the subject when I've grumbled about it. Because DB's relationship with SIL is so fraught already I obviously can't rock the boat by saying anything to SIL.
But AIBU to privately feel really annoyed? I just can't understand why someone would do this. There are so many names in the world! Surely some should be off-limits??