Question

I’m abroad with a somewhat traditional friend who, when he’s abroad, eats chicken/meat in restaurants that are obviously without kosher supervision (he doesn’t eat pork and things like that). Today he wanted to eat at some place, so I went to check how much it cost and told him a different, more expensive price so that he wouldn’t buy there because it wasn’t kosher—and in fact he didn’t buy it. Am I obligated to lie to him like that? At least is it permitted for me? If it’s forbidden to lie to him, then after I already lied and it’s over, do I have to tell him? (From what I know of him, he’d take it lightly and wouldn’t get angry or anything, but the next chance he gets to eat somewhere without kosher supervision he’ll say to me, “There, this is like that place.”) Rabbi, please don’t ask me what my friend thinks about God and the Torah—I just can’t figure that out from him or get clear statements out of him about his views; that’s just how he is, and how his whole family is.