Ok, I took a risk this morning. I reintroduced them in the upstairs hall rather than the pen. It was a risk because it is bigger and because it is somewhere that Loki has been before and is right outside the doors to both his room, the room Farore has been in and the room poppy and Thor live in, plus poppy and Thor often run around it. So there are probably bunny smells galore!
BUT
I thought being somewhere familiar might help Loki and it did. His initial reaction was one of fear but pretty quickly he calmed down a lot. Farore bless her was completely unfazed by everything :lol: and flopped down. Loki crept up, one cm at a time until he was almost touching her at which point without getting up Farore turned her head to him and had a small fluffy bunny face smooshed under hers as he demanded grooms! :lol:
She groomed him for ages as he tooth purred
He is still a bit unsure about being approached but is doing much better today they are now snoozing in bunny loaf position about 2 ft apart
I Rest My Case :lol: