i think aarti told palak if u celebrate ur bday then ur mamma will come to meet u...
tht way palak celebrates her bday..aarti may think by tht time..i will make palak happy but tht wont happen..n as u can see...yashu will be angry like"u lied to my kid" "i trusted u.." "i cant trust u again"
same way aarti told yash when ansh was kidnapped...so this time..its repeating the same thing again..only the person now will be aarti who wud be at fault...