 Charlie and Kirsten s wedding day arrives where at the last minute, he approaches Kirsten and tells her that he is not ready to make the final decision of his life by getting married. But Kirsten instead gives Charlie an ultimatum: marry her or they re through. Meanwhile, Bailey is caught between wanting Sarah back and ruining his friendship with Will. Justin comes to the wedding to talk to Julia about their lost relationship and they spend the time drinking champagne and ending up having sex.