Rashid .. Why not Dilshaad

Zoya confessed about billi truth to rashid but wasn't she close to dil or atleast aapi somebody Dilshaad had a rt to know coz she never judged zoya or called her lair she always supported her then why didn't zoya say something to Dilshaad
What tanu did to mehendi was criminal how come zoya didn't put two and two together to figure out humeras poison truth she knew tanveer is vicious person after what she did to her before maulvi came , burning herself , lying so confidently why zoya did not give some hints to Dilshaad or ayan
And how come API and Dilshaad never discussed zoya mehendi allergy !!!!!!!
I am mad rt now it's upto them what they want to show par logic to use karo ek business tycoon aur ek intelligent computer hacker to be exact is made to look incredibly foolish by a sadakchap no decent billi