Rose Byrne couldn’t be happier for Bridesmaids costar Kristen Wiig, who recently welcomed twins with fiancé Avi Rothman.“It’s such lovely news and she’s just such a delightful person,” Byrne, 40, gushed to Entertainment Tonight on Thursday, June 18. “She’s such a nurturing person, so it’s wonderful news.”Us Weekly exclusively confirmed one day before that the Saturday Night Live alum, 46, and Rothman, 42, welcomed their little ones via surrogate earlier this year.