Iggy Azalea -- Hey D'Angelo Russell ... Thanks for The Intel On Swaggy

With the Lakers reportedly "isolating" D'Angelo Russell ... one person is still embracing him, Iggy Azalea -- who just gave D.A. a shout-out for helping to expose her fiancé Nick Young.

Russell is under fire for allegedly secretly recording a video of Young which made its way to social media -- in which Swaggy P seems to admit to cheating on Iggy with a 19-year-old woman.

Well, Iggy has finally weighed in ... saying, "Hmmm i see D Angelo Russell is trending ... I actually liked his film. Thanks bro."

Obviously, the big question now is what happens to their relationship ... especially since the two are engaged and have been talking about their big wedding for months.