Yes, it looks like 'Salman-Katrina-Asin love triangle' is just a faux. Neither Salman nor Katrina has come out to speak about the rumours of their split. They are unlikely to clarify the issue in the near future too if we are to go by the way they treated such rumours in the past. But Asin has come out in the open and denied the whole speculation. She claimed that her relationship with Salman is nothing more than professional.
Well, it could be just a means to promote the film London Dreams, which features Salman and Asin.