Do Us Part

On his wedding day, Ryan is about to marry Julia when Rose — his college best friend and unrequited love — crashes the ceremony and confesses that she has loved him since they first met. Ryan realizes he has harbored the same buried feelings all along, plunging him into an emotional crisis as he weighs his unresolved past with Rose against his commitment to Julia. His best man Mark, a charming and non-monogamous college friend, must manage a tangle of old and new secrets to keep the wedding on track and their friendship intact. The film traces the history of Ryan and Rose's almost-romance in college while posing the central question of first love versus chosen love. A pivotal confrontation with Julia ultimately helps resolve the crisis, though the film leaves viewers to grapple with the tension between 'the one we almost chose' and 'the one in the white dress at the altar.' Note: The TMDb overview on file ('After a one night stand goes horribly wrong. A man must face the consequences when his wife comes home.') does not match any detail found across multiple sources for this IMDb ID; all reliable sources consistently describe the above romantic comedy/drama plot.

Sources: Letterboxd, Rotten Tomatoes, Film Threat, Web search aggregation