Occassionally I like get tired of the standard heroes who always do the right thing so I love when I stumble across romance novels with anti-heroes. some of my favorites are.
Knight from Kristen Ashley's book Knight
Deuce West from Madeline Sheehan's book Undeniable
Michael Boutilier from Nenia Campbell's book Cloak and Dagger

Have you tried To Have and To Hold by Patricia Gaffney? Night Fire by Catherine Coulter? Anne Stuart also has several anti heroes.

No but thank you recommendations, Im going to add these to my book list

Knight from Kristen Ashley's book Knight is also one of my favorite heroes.

I loved, Lotario by NOT ALLOWED, He's a charming bad boy.