Quick Leliana Question

Bear in mind also that Morrigan either abandoned the Warden immediately before the big battle (because you refused the dark ritual) or left straight after the battle and Leliana probably picked up on the fact that she was connected with the strange phenomenon of the Warden not dying when they killed the arch demon. Leliana no doubt assumed that was to do with forbidden magic, which to be honest was entirely correct. So factor in that Morrigan never approved of helping the weak and defenceless, was fairly scathing of religion and an apostate hedge mage, and it is fairly understandable that Leliana would be highly suspicious of Morrigan's presence in the Winter Palace and involvement with Celene. She wasn't the only one who felt that Celene relied upon her rather too much and that Morrigan had undue influence over her. The fact that Celene, who was meant to be an astute political leader, was prepared to openly support an apostate mage like Morrigan at a time when tensions were so high about magic and mages, would also raise suspicions in the minds of onlookers. Don't forget that Vivienne was equally scathing about the person who usurped her place at Court.