▁from ▁her ▁mother ▁in ▁series ▁ 5 ▁explained ▁her ▁back story ▁and ▁a ▁possible ▁reason ▁of ▁why ▁she ▁returned ▁to ▁be ▁with ▁her ▁children . ▁Mon ica ▁announced ▁at ▁the ▁beginning ▁of ▁series ▁ 5 ▁that ▁she ▁was ▁pre gn ant ▁again , ▁giving ▁birth ▁to ▁St ella ▁at ▁the ▁end ▁of ▁the ▁series . ▁She ▁has ▁two ▁known ▁grand children , ▁an ▁un named ▁child ▁from ▁F iona ▁when ▁she ▁left ▁in ▁Series ▁ 2 , ▁and ▁Lip ' s ▁daughter , ▁K atie ▁Mag u ire . ▁Mon ica ▁appeared ▁in ▁ 4 0 ▁episodes ▁overall . ▁ ▁When ▁she ▁returned ▁home ▁in ▁series ▁ 1 ▁and ▁series ▁ 3 , ▁her ▁children , ▁apart ▁from ▁Carl , ▁treated ▁her ▁with ▁nothing ▁but ▁susp icion ▁and ▁host ility ▁for ▁leaving ▁them ▁with ▁Frank . ▁F iona ▁( in ▁series ▁ 1 ) ▁and ▁Deb bie ▁( in ▁series ▁ 4 – 6 ) ▁were ▁especially ▁host ile ▁since ▁they ▁were ▁the ▁ones ▁who ▁were ▁forced ▁to ▁take ▁on ▁the ▁household ▁duties . ▁Even ▁when ▁Mon ica ▁returned ▁for ▁an ▁extended ▁stay , ▁Deb bie ▁was ▁still ▁the ▁one ▁to ▁look ▁after ▁Li am ▁and ▁to ▁an ▁extent , ▁her ▁older ▁brothers . ▁Although ▁Mon ica ▁wanted ▁to ▁be ▁a ▁good ▁mother , ▁and ▁was ▁shown ▁doing ▁some ▁household ▁ch ores , ▁la z iness ▁and ▁self ish ness ▁prevent ed ▁her ▁from ▁being ▁any ▁real ▁help . ▁ ▁In ▁series ▁ 6 , ▁feeling ▁un lo ved ▁by ▁her ▁children ▁and