Trainwreck (2015) online

Since she was a little girl, it's been drilled into Amy's head by her rascal of a dad that monogamy isn't realistic. Now a magazine writer, Amy lives by that credo - enjoying what she feels is an uninhibited life free from stifling, boring romantic commitment - but in actuality, she's kind of in a rut. When she finds herself starting to fall for the subject of the new article she's writing, a charming and successful sports doctor named Aaron Conners, Amy starts to wonder if other grown-ups, including this guy who really seems to like her, might be on to something.