looking for arshi ff - pls help

i am looking for the following arshi stories.

1- the story goes like this--- arnav and khushi are separated,divorced i think. and arnav comes to khuhsi to return to shantivan as his nani is in the last days and that she wants to see her grandchild.

so arnav asks this help from her. not sure which is this ff

2. another story where again arnav and khushi are divorced - they had been married for 8 years.. a childhood friends turned into love and to marriage. they meet..

3.another story- arnav mariries khushi out of the shyam misunderstanding.. but khushi is suffering from bone marrow cancer. they go to mumbai for treatmetn..

pls let me knos

and any other ffs

thanks