Emma Lange's "A Certain Reputation"

Wow! Intense, angsty, fantastic. A real emotional punch packed into a short "traditional Regency". The 2 main protagonists start out with a strong dislike towards each other, mainly the fault of the hero, who starts out as an extremely unlikable character, but they both change, reveal their better sides and grow towards each other. The hero almost throws it all away near the end in a very nasty and mostly unjustified rant at the heroine, but he manages to redeem himself quite nicely by the end.