Ah Frog I do feel your pain. I've been in a very similar situation. We're unmarried as yet, but have plans in a couple of years and I will definitely be taking his name - his name is quite unusual and I've had a very very common name for far too long!
I wanted BabyBear to have my surname as an extra middle name, to have some association with me and my family (and to avoid passport control dramas). DP has refused. He says it'll be too confusing for the sproglet and everyone will end up D-Bing it.
I don't agree, but he's simply not shifting on it. Part of this stems from the fact that his son had a similar arrangement at birth, but just used his surname. However, when they split up, DSS's mum changed the name to her name (they weren't married) out of spite.
This means that, since mum has since married and has two children with hubby, DSS has no connection with anyone at all.
My family have freaked out - literally - about baby having the father's surname, and actually got quite mean and nasty about it. They say Baby should have my surname and we should change it by deedpoll when we get married - but what they don't know is, it's not a very simple process as I understand it. And whatever happens, DP will always be the father - even if we do split up.
It doesn't help that when my parents have cited examples of babies having mum's name, every example pertains to someone where the parentage was in question. I know that's not always the case, but seems an unfortunate backfire of 'evidence'!
Anyway... I think a concession has been made that he will allow one of my family first names as a middle name, either my nan's or my dad's. My nan never had any girls so had no opportunity to pass on her name, while my dad only had girls, so I'm pretty sure would love to have his name taken into the next generation. Plus it's the first next generation baby in the family, so it has extra significance.
So I really think the Bradley thing is a fab idea - it's not really a bad name at all! I think of Bradley Cooper and Brad Pitt... and a former Kiwi housemate who was a chef 