Tortious Interference with Contract - koi difference hai?

Kya difference hai tortious interference with contract me case me, jab kuchh vyakti contract banane ya unke beech se judne se roka karta hai, aur abhi unke beech se jude huye contract unki puri kripa se banaya gaya hai?

Maine ek case diya hai - Eastern States v. B. and C. (1918) - yahaan ek contractor ne dusre contractor ko kehkar unki services ka koi contract banane aur poora karna ke liye rok diya, lekin phir bhi dono contractor ne unke beech se hi contract banaya aur poora kiya. Kya yeh tortious interference kaa ek case hoga?