This is my take on what's actually happening - Jordan is making a big show of his friendship with Henry in front of his public (the housemates) - even to the point where we have Jenkin talking about wedding outfits. Whilst out of earshot & eyesight of the others he's playing this flirting game with Matty. The show also seems to be leading us to think that Matty is the instigator of most of this (how many shots have we seen of Matty apparently staring at Jordan) it happens at least once an episode. And yet apparently none of the other housemates have noticed this!!!!!!
I think there's been a lot of coercive editing going on there - and it is making Matty look creepy!
At the same time we also see that when ever Matty tries to have a serious discussion about whta's going on between them, Jordan goes all coy "Oh I'm tired now" "Oh you're scaring me now" but when Matty walks away he's suddenly all flirty with him.
Like recently in the bedroom - Matty walks away & suddenly Jordan's act changes & he coyly teases "Don't walk away from me" - it has the desired effect & Matty returns. Even more telling, that exchange led to Jordan chasing Matty down the corridor to the main living space. We see Henry through the door & suddenly Jordan does the fakest fall on his arse I've ever seen!
Oops - lost himself there & suddenly had to get himself out of the situation.