May be he knows that she is a widow and Dsahmukh are her in-laws. Everyone in the town seems to know. I assumed he didn't know she was a widow because that was the case on the original show.
I think we may be in a forum bubble - everyone on the forum assumes something but the show is showing else. 🤣
Now this is a very good point you've made! Maybe we are just assuming coz it hasn't been explicitly told. He probably knows everything the Don that he is😆