Most Helpful Guy
Yeah, by telling you she was with her ex-bf she's revealing to you that she is available. Women don't give out information like that unless they are trying to tell you something.
(This has nothing to do with your scenario BTW)
But in general,
Women in 30's do play hard to get and a guarded because they've been pump and dumped by so many guys that they have a bitter and misandry view on men, and a more pessimistic view on relationship at this boy.