To take his last name or not?

So I am getting married in 2 weeks and am not feeling like I want to take my fiance's last name. We have both been married before and although is ex took her maiden name back there is something unsettling about being the second Mrs. So&So (makes me nauseous to think about it). They have kids together, which I have no problem with. I want his kids from his previous marriage to still have a last name connection to him but I don't want to be confused with his ex-wife (probably unlikely since we have different first names but still awful to think about). He is reluctant but after much deliberation has given in to me just keeping my maiden name or hyphenating with his. I actually wanted us both to go with a last name that is his and mine so he still shares that bond with his kids and has something different for us showing a unity of our 2 lives but he is not going for it. I honestly think the only reason he is against it is because he runs with a macho "me man, me king of castle" crowd, which, although difficult, I broke him of but he still would get crap from his friends. He stands behind the argument that I am disrespectful him while he is the one that is so ademant about having everythign completely different with this marriage and relationship. I hold tight to my point of it's a new life together and this is another way to do that while throwing in that he is being disrespectful to me by not supporting me with this request. What are your thoughts?