I have closely watched almost every single episode and there was not even one instance where Adi was wrong, except one may be to an extent. The shopping scene, not while changing shirts but whilw trying to irritate Zoya and expecting her to follow them, that scene was little out of place but little did he know that Mahi was so stupid to falling love with someone just coz they are sweet with them! He definitely saw Mahi as friends and even if he had a slightest idea that she would fall for him, he would have stayed away !
As much as Mahi deserves this heartbreak because she is evil, I feel she deserves this coz she never loved Adi truly, she never wanted to know about him or value him, she was just an infatuated teenager who wanted a handsome boyfriend Adi and when she knew that Adi and Zoya were building their relationship block by block she got insecured and rushed into proposing Adi without even thinking about his feelings, I've often seen people both guys and girls mistaking friendship with love and end up creating troubles, I'm sure Adi wouldn't have any problem in making friends with Mahi , hence he was sweet with her. These usually happen when you are in a group and one person becomes close to other person in a friendly manner, just to get a reaction from him or her. That doesn't mean they love each other abd a triangle has to be formed between them !