I grew up in social care and have no connection to any biological family. I went on to get married and take on my husbands last name. We had two children 14 & 12. However are now divorced. I still use the last name as it’s the same as my children. I’ve been in a relationship with someone else for 5 years ans we are expecting a baby in June. AIBU by asking for a double barrel last name so that my kids and I can have a connection to the new one, just like him and his daughter. He says he will never do this as it’s my ex husbands name, that he’s prefer me to use my maiden name. ( my Father was an alcoholic, drug addict and wife beater who abandoned me at 6 months old) I don’t want his last name. Also my ex is ok with his last name being involved as he knows how important connection to family is.