The best way I can come up with to get at the fizzy-drink delights of Splitsville is to describe a scene that takes place maybe a quarter of the way through the movie, after one of the two marriages at its center has imploded. Ashley (Adria Arjona) has recently informed her husband, Carey (co-writer Kyle Marvin), that she wants a divorce so she can sleep with other people. Not long after this bombshell, Carey learns that his best friend Paul (director and co-writer Michael Angelo Covino) and his wife, Julie (Dakota Johnson), have an open marriage. Having just had his world rocked — twice — Carey returns to the apartment that he and Ashley share, determined to preserve the remnants of his relationship by proving that he, too, can handle non-monogamy.

What follows is a montage of Ashley

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