Thornir Alekeg
Albatross!
When is Starbuck called a screwup for having sex? She calls herself a screwup when she and Apollo were arguing after she slept with Baltar. Apollo didn't like the fact that she slept with him, but I think it is partly because he has feelings for her, partly because she has a history of getting drunk and sleeping with bad choices, and partly because it was Baltar.