I think i may have figured it out???
Well i live with my mum, Beth is mums dog, Mizzy is my bro's dog (mizzy does nothing, craves nothing, like a large bear), Rio was here before beth so her being the "Top" dog getting all the attention, now beth is here Rio does like to share anything, people mostly, so rio is no longer top dog.
Rio see's beth as somthing she has to kept away from me (rios main provider of everything), so beth trys harder to get close and rio pushes her away harder, corsing fights now and then, rio is my angel and i take rios side therefore disliking beth.
Rio getts upset when i'm petting any other dog so i never had a chance to bond with beth because i was giving more attention to rio, sort of habbit of ignoring beth.
Also i gave beth a bath, groom and walk today and not once did i wounder why m i doing it, i enjoyed it, so the first step i think is to do more with her.
Thansk for the tips etc
Ky and Rio