When we had dd we gave her my ex's surname we had been together for 7 years and didn't for one minute think we never get married, anyway ever since dd was born ex mil has always had a bee in her bonnet got nasty if things weren't going her way, very jealous and the jealousy got quite ugly a lot of mine and ex's problems were caused my ex mil and I believe we split because of her. one day ex told me he was going to propose but didn't because things weren't right so about a year later we changed dd name by deed poll so she has my name as a last name so both our names but his then mine ( I'll be the one doing the school runs etc and personally think it's important to have my name too ) he signed the forms and all is well. Fast forward to a few years later ( now ) ex mil phones to speak with dd and she says hello is that ..... then just her dads surname when I picked her up on it and said actually her names .... ... .... she said oh yes but that's too much for me to remember !
Aibu or is that a bit wrong ? I think she does it to get at me and also I don't want dd getting confused ( she's 3 years ) she got extremely funny when his brothers ex called her dd her surname instead of their family name so I can see that it was malicious when she did it, not sure if I'm being silly or if she is being unreasonable