Thanks! I have put them back together in an indoor cage and they have both been grooming etc! I think I put them back into the playhouse too soon (it had been thoroughly cleaned) because as soon as he chased her in there she went for him which she hadn't done before, she'd just run away.
I'm working today so I've managed to split the playhouse so the can see and sniff each other but I won't have to worry about any fights while I'm not around. Do you think that will help her get used to him being in her territory??