Busy Philipps had an emotional affair and almost left her husband — but Michelle Williams gave her great advice

In her new memoir, "This Will Only Hurt a Little," Busy Philipps isn’t afraid to call out foes in Hollywood — looking at you, James Franco — but she’s equally forthcoming about private issues in her own life. One chapter details an emotional affair that Philipps carried on with “another dad,” causing her almost to leave her marriage.