▁" what ▁they ▁mean ▁to ▁each ▁other ". ▁Marcel ▁and ▁Thom son ▁made ▁a ▁guest ▁appearance ▁together ▁in ▁the ▁series ▁ 1 7 ▁episode ▁" Sp iral ▁St air cases ", ▁originally ▁broadcast ▁on ▁ 2 3 ▁June ▁ 2 0 1 5 . ▁ ▁Before ▁Marcel ▁took ▁mat ern ity ▁leave , ▁her ▁co - star , ▁Paul ▁Brad ley , ▁decided ▁to ▁leave ▁his ▁role ▁as ▁Elli ot ▁Hope . ▁Marcel ▁asked ▁produ cers ▁to ▁return ▁for ▁his ▁exit ▁episode ▁before ▁she ▁left ▁and ▁produ cers ▁agreed ▁as ▁they ▁also ▁shared ▁an ▁interest ▁in ▁arr anging ▁this . ▁A ▁show ▁tra iler ▁preview ing ▁Jac ' s ▁appearance ▁was ▁released ▁on ▁ 1 6 ▁September ▁ 2 0 1 5 , ▁and ▁the ▁appearance ▁features ▁in ▁the ▁series ▁ 1 7 ▁episode ▁" At ▁First ▁I ▁Was ▁Af raid ", ▁originally ▁broadcast ▁on ▁ 2 2 ▁September ▁ 2 0 1 5 . ▁Jac ▁mentions ▁that ▁she ▁and ▁Jon ny ▁have ▁separated . ▁Hol by ▁City ▁series ▁producer ▁Simon ▁Har per ▁clar ified ▁that ▁their ▁split ▁was ▁" per fect ly ▁ami able " ▁and ▁they ▁are ▁sharing ▁parent al ▁responsibility ▁of ▁Emma . ▁He ▁also ▁pointed ▁out ▁even ▁though ▁the ▁characters ▁tried ▁a ▁relationship , ▁their ▁alternative ▁personal ities ▁meant ▁it ▁would ▁not ▁succeed . ▁Marcel ▁expanded ▁on ▁the ▁break down ▁of ▁the ▁relationship , ▁stating ▁that ▁Jac ▁dis lik es ▁how ▁Jon ny ▁did ▁not ▁asp ire ▁to ▁be ▁" any thing ▁other ▁than ▁a ▁nur se ". ▁The