Chloe Sevigny had to apologize after calling the previous season of HBO’s “Big Love,” in which she stars, “awful.” Sevigny said she was exhausted at the SXSW festival in Austin, Texas. “I wasn’t thinking about what I was saying . . . sometimes things slip out that you don’t mean, and I obviously didn’t mean what I said in any way, shape or form. I love being on the show . . . It’s been the greatest op portunity of my lifetime so far — the best role I’ve ever played,” she told Entertainment Weekly’s EW.com. “The take-away lesson here is, just be more careful with my words and just slow down and breathe.”