No problem :)
its weird, its hard to define really, but I suppose most of the suburbs, bar Hove itself & maybe Shoreham - though beware, some estate agents list Portslade as "west Hove" & I've definitely noticed a change in tolerance when looking at property there -
We looked at houses there, even though DH warned me it was different to Brighton, I couldn't believe it could be so different & be so close, but it can be - walking down the street every other car/person/idiot shouting Elvis at my DH
& I've had alternative looking friends visit for the arts festival & go out Whitehawk & Moulescomb way & comment they couldn't believe the difference - it can be the same shopping out that way (Liddl & Asda) & I've visited a Cat sanctuary on Portland road way & I shocked to hear the owners being VERY biggotted over another muslim looking family - I'd expect that sort of intolerance would spill over to you too -
it is weird here, we do live in a lovely tolerant of everything little bubble, so much so its easy to forget just how ignorant some people can be outside of that, but there does seem to be a very definite line & you cross it & its back to small town mentality that you unfortunately find anywhere - but do long as you stay in Brighton & Hove itself, Central Brighton, Kemptown & avoid the areas mentioned above, I think you should love it here -
my DD is at Carlton Hill & I know that several of the staff are gay & there are quite a few families like yourself too, its hard to get in there now, but you could probably use your status to help get in - but I'm pretty sure that is the same with Schools such as Middle Street & other central Brighton schools, though I'm not do sure about St Barts, as I think there's a bit more of a rougher feed into that school - IYKWIM - Carlton Hill has a very mixed feed, but intolerance of any kind is dealt with, not ignored
We have friends living in Shoreham, which is a nice area, they love it & we have lesbian friends who also visit & stay over often, they aren't parents, but they childmind, so often have mindees with them & they've commented on how nice it is there & that they never get any hassle, even thinking of moving there themselves, but I'm not sure how Schools are there, you will need to research that a bit more.
HTH