Let me understand...
You think that you and your bastard child deserve the name..
But the woman that was actually married to the man do not...
Sorry that logic escapes me... but the bottom line is: IT was her name long before you came into the picture..
If you don't like the situation; don't make it worse by marrying into it...
But again, if I read correctly the child is NOT biologically his?
This sounds like a VERY similar scenario to my stbx. His ex seeing that up til that point had retained her married name (although, now in retrospect that evidently wasn't by choice, she could NOT change her name b/c she wasn't legally divorced.. a fact SHE knew but stbx did NOT.. once the divorce WAS final, she wasted no time whatsoever in changing her name back to her maiden name, so half of what came out of her mouth regarding her name was bs to begin with).. but ANYWAY.. HAD she retained her married name, she COULD have given her new child that name and you think that's appropriate?
The child is NO relation whatsoever to being that last name. The wife was no longer married to stbx, the child was NOT his biologically, AND to add further potential insult to injury, the ACTUAL father of the child was the man that she was cheating on stbx with.
So he should be happy her illegitimate child, fathered by the man she was cheating on him with, should share the same last name of his biological child with her, and also his biological child with me?
Sorry, I'm pretty ballsy sometimes but I would NEVER have the temerity, being divorced, to give my ex-husband's last name to a child NOT of his biology. To do that is just tacky in my opinion.