I feel like such a failure for not even knowing that Kat Von D and Deadmau5 were dating, much less engaged.

We all know that Jesse James cheated on Sandra Bullock with fellow Nazi tattoo enthusiast Michelle "Bombshell" McGee, a revelation that came just days after Bullock tearfully thanked her husband in her Oscar acceptance speech.

LA Ink (TLC) -- Fun fact: Kat Von D is the most attractive woman on this entire network.

LA Ink (TLC) -- Winter premiere (show's been on hiatus since October).

L.