It wasn't exactly difficult to keep Wil happy in the short-term, but Ari had a gift for keeping him perfectly content. Well, a gift for doing that to any man, really. Knowing her did only dulled its edge.
But when food was involved and his life wasn't on the line, why would he care too much if she was trying to convince him of something. It wasn't like Merri was poision. "What's the deal with you two?" Besides food and wine? Wil really liked some good gossip.