help me find a story

An arshi story.. Khushi leaves her son at the door step of arnav house, baby doesn't talk anything but only Papa..

At first day arnav drunk alot n came home n saw the baby n scare him with his anger then later days arnav get

attached to the baby he takes him to everywhr he goes and never leave his side..

his son just speak Papa only n glue to him.. Arnav vl be partner with khushi as a client n they go to the

dinner in hotel there khushi takes the baby boy to washroom n Arnav gets suspicious how come the baby went

to khushi without any awkwardness as if she isnt stranger to him n then wen the baby is hospitalized for some

reason khushi vl come with a hoodie n secretly meet her son at that moment arnav will come and catch her..

can you guys tell me which story is this?