<P> At the end of the thirteenth season , Abby and Luka plan to honeymoon in Hawaii . However , the night before they are due to depart , Luka receives a phone call from Croatia informing him that his father is ill , so the honeymoon is put on hold until Luka can return from his urgent trip abroad . After Luka 's departure , Abby has a tough time with the stern new ER Chief Kevin Moretti , who plans to mold the department into a more efficient and professional work environment , but Moretti quickly tells Abby he is very impressed with her work . Despite this , she seems to dislike him more than many of the other residents . In season 14 , Abby is struggling to deal with Luka 's absence , raise Joe and work at the ER ; in `` Gravity '' , Joe is injured after falling off a jungle gym at the playground and Abby ends up falling back into drinking at the episode 's end . She approaches Dr. Janet Coburn ( the O.B. Chief ) who appears to have been her AA sponsor in the past . Abby 's drinking problem continues to escalate , and she realizes how bad it is in `` Blackout '' when she shows up drunk to a party in honor of Pratt and Morris passing their boards . Abby finds herself waking up at 3am in Moretti 's apartment realizing , after sobering up at the airport when trying to find a flight to Croatia to see Luka , that she slept with him . </P>
<P> At the end of the thirteenth season , Abby and Luka plan to honeymoon in Hawaii . However , the night before they are due to depart , Luka receives a phone call from Croatia informing him that his father is ill , so the honeymoon is put on hold until Luka can return from his urgent trip abroad . After Luka 's departure , Abby has a tough time with the stern new ER Chief Kevin Moretti , who plans to mold the department into a more efficient and professional work environment , but Moretti quickly tells Abby he is very impressed with her work . Despite this , she seems to dislike him more than many of the other residents . In season 14 , Abby is struggling to deal with Luka 's absence , raise Joe and work at the ER ; in `` Gravity '' , Joe is injured after falling off a jungle gym at the playground and Abby ends up falling back into drinking at the episode 's end . She approaches Dr. Janet Coburn ( the O.B. Chief ) who appears to have been her AA sponsor in the past . Abby 's drinking problem continues to escalate , and she realizes how bad it is in `` Blackout '' when she shows up drunk to a party in honor of Pratt and Morris passing their boards . Abby finds herself waking up at 3am in Moretti 's apartment realizing , after sobering up at the airport when trying to find a flight to Croatia to see Luka , that she slept with him . </P>
who did abby have an affair with on er
who did abby have an affair with on er
Moretti
Moretti