. >> reporter: by all accounts, erica anderson's wedding was perfect. >> i was like, on cloud 9.t was delightful. >> reporter: she had the wedding dress, the ring, the vows. >> i choose you today. >> i want this to be so easy. got rose, and, yeah, had like, 20, 30 friends over. >> reporter: the only thing missing, the groom. >> i will throw the bouquet somewhere. >> reporter: it was all about making a formal commitment to the love of her life -- herself. >> yeah, i've been told i'm a great catch and today i'm catching myself. >> reporter: what started out as a house warming, later evolved -- >> and i'll marry myself. >> reporter: do you feel like it was an outward self-validation? >> absolutely. because i think it's hard not to adopt whatever society's messages are, and i certainly think that one of messages is that you're not enough if you're not with someone else. >> reporter: but erica is far from alone. she joins a small but growing number of women from around the world, women like yasmin, who celebrated her 40th birthday by saying i do. her mother even walked her down the ai