I got divorced and never changed my last name. We have 2 kids together and we all share the same last name. Now, my ex has remarried, and the new wife now shares the same last name with all of us. I do not want to share the same last name as her. But if I change it, then my kids will share the name with the newly wedded couple, and I, the one on their birth certificate, will be the odd wo(man) out. I know I could hyphenate, I know my kids would understand, it's me. I am the one who has an issue with it. And when I get married, I would need to change my last name again, and I know my girlfriend will have a HUGE issue if I hyphenate my new last name, and my exes last name...I don't know. I don't know what to do.