▁some ▁shock ing ▁revel ations , ▁including ▁the ▁fact ▁that ▁Steven ▁has ▁sle pt ▁with ▁L ily ▁when ▁her ▁last ▁name ▁was ▁Müller , ▁they ▁decide ▁to ▁end ▁things . ▁ ▁Ser ena ▁is ▁re - un ited ▁with ▁Dan ▁again ▁in ▁a ▁last ▁attempt ▁to ▁make ▁things ▁work . ▁Dan , ▁on ▁his ▁hand , ▁has ▁been ▁writing ▁a ▁sc ath ingly ▁honest ▁sequ el ▁to ▁" In side " ▁with ▁the ▁help ▁of ▁Georg ina . ▁One ▁of ▁his ▁last ▁and ▁most ▁po ign ant ▁chap ters ▁is ▁The ▁Ser ena ▁Chapter , ▁which ▁is ▁released ▁during ▁the ▁Thanks g iving ▁party . ▁Ser ena ▁is , ▁in ▁the ▁chapter , ▁described ▁as ▁a ▁" G old en ▁girl " ▁who ▁lives ▁for ▁attention ▁and ▁love , ▁and ▁dram atically ▁ends ▁things ▁with ▁Dan . ▁She ▁dec ides ▁to ▁move ▁away ▁from ▁New ▁York , ▁but ▁is ▁intercept ed ▁by ▁Dan , ▁who ▁tries ▁to ▁conv ince ▁her ▁that ▁he ▁has ▁always ▁loved ▁her ▁and ▁always ▁will . ▁H urt ▁and ▁ups et , ▁she ▁doesn ' t ▁believe ▁him , ▁and ▁leaves . ▁Before ▁she ▁leaves , ▁Dan ▁sl ides ▁a ▁file ▁into ▁her ▁bag , ▁which ▁she ▁opens ▁on ▁the ▁plane ▁before ▁take - off . ▁It ▁is ▁revealed ▁that ▁Dan ▁wrote ▁two ▁chap ters ▁on ▁Ser ena , ▁and ▁that ▁the ▁second ▁one ▁was ▁the ▁" Good ▁Ser ena ▁Chapter ". ▁She ▁gets ▁off ▁the ▁plane ▁and ▁goes ▁to ▁talk ▁things ▁through ▁thoroughly ▁with ▁Dan . ▁ ▁In