Like first when that mechanic talks about Aarti and random guy , Yash tells to himself that he wont believe any outsider since Aarti ji can never b wrong .. he does not doubt Aarti at all ..
Then yesterday when driver finds Prashant's watch in car , he does not try to interconnect what the mechanic said last night about random guy with Aarti at all but instead he tells with full confidence that Prashant might hv left the watch in car during diwali night only ... again no doubts on Aarti at all ...
Then when Yash sees Aarti throws away the watch and even feels irritated with it , Yash does not question her why he hates Prashant so much but instead he goes to ask Prashant that why my wife hates u so much , which indirectly mean he will rather doubt Prashant's intentions but he will never hv a doubt on Aarti's actions 🤔
So I guess in all 3 instances Yash with his actions hv proved that he blindly trusts Aarti and feels she can never go wrong or hide anything from him ...