Something that I hadn't thought about before: How long do you think that Londo and Adira had been seeing each other in this episode?

Previously I'd thought that when Londo finds Adira in his quarters, it was because Trakis had send her to him and this was their first night together. On this viewing, however, I got the impression that it was not their first encounter (and Trakis only forced her to steal the files after he'd found out that she was having an affair with Londo).