As Sally faces probable death, Wyatt is torn between his affections for both Flo and Sally.
In an assurance to Sally that Wyatt would always be there for her, he promises to be there to talk to her – whenever she wants for whatever reason.
The fact that Flo has no problem whatever with this is a sign of kindness in humanity. Another of Wyatt’s ex’s, Katie Logan, is present in the scene during the talk to me promise, showing that Wyatt is a good man to be around even after a romantic breakup.