▁feelings ▁for ▁him . ▁Ser ena ▁sle eps ▁over ▁at ▁Dan ' s ▁and ▁w ake ▁up ▁to ▁find ▁themselves ▁in ▁a ▁comprom ising ▁position , ▁one ▁that ▁Jen ny ▁photograph s ▁and ▁sends ▁to ▁G oss ip ▁Girl . ▁As ▁the ▁photo ▁spread s , ▁N ate ▁and ▁Ser ena ▁tempor arily ▁end ▁their ▁relationship ▁and ▁she ▁joins ▁Bla ir ▁for ▁a ▁summer ▁in ▁Paris . ▁ ▁Season ▁ 4 ▁Ser ena ▁is ▁seen ▁sp ending ▁her ▁summer ▁in ▁Paris ▁with ▁Bla ir , ▁rel uct ant ▁to ▁tell ▁Bla ir ▁that ▁she ▁has ▁en rolled ▁in ▁Columbia , ▁something ▁that ▁Bla ir ▁fear s ▁will ▁have ▁them ▁return ▁to ▁their ▁high ▁school ▁p ett iness , ▁when ▁she ▁receives ▁news ▁that ▁Ch uck ▁might ▁be ▁dead . ▁After ▁an ▁un fortun ate ▁double ▁date ▁involving ▁a ▁hand some ▁royal , ▁Bla ir ▁eventually ▁forg ives ▁her . ▁Ch uck ' s ▁arrival ▁and ▁a ▁visit ▁to ▁a ▁Paris ian ▁m org ue ▁confir ms ▁that ▁he ▁is ▁alive ▁but ▁Ser ena ▁purs ues ▁him ▁in ▁hopes ▁of ▁convin cing ▁him ▁to ▁return ▁to ▁New ▁York ▁when ▁he ▁tries ▁to ▁run ▁away ▁to ▁London . ▁She ▁returns ▁to ▁New ▁York ▁having ▁made ▁her ▁decision ▁between ▁Dan ▁and ▁N ate ▁but ▁her ▁decision ▁becomes ▁irrelevant ▁when ▁she ▁sees ▁them ▁with ▁their ▁new ▁respective ▁significant ▁others , ▁Van essa ▁and ▁Jul iet ▁Sh arp ▁( K atie ▁Cass id y ), ▁a ▁girl ▁with ▁a ▁personal ▁vend etta ▁against ▁Ser ena . ▁ ▁Ser