You were Giddens niece, tho he treated you more like his daughter because your father was... bad.

When the bau found out Gidden was murdered spencer, (who you were.. involved with when you worked at the bau) he instantly went to find you for assistance on the case along with Derek.

After you left the bau, you got into partying. This lead to you pole dancing for fun. Which is where the two men found you. Dancing at a club bar.