Err lol you guys are savage 😆
I think the problem on TV is that they never show characters having the kind of self-awareness regular people do.
Abir seems to realise somewhere that he has a thing for Mishti which is why he is trying to stay way from her BUT he has not verbalised it to himself yet. He hasn't said, 'I like Mishti but she is supposed to wed my brother, so I will stay away from her'. He just FEELS he has more than platonic feelings for Mishti.
Had Kunal been any other guy Mishti liked and not his brother, it would have been okay but this crap is 🤢. Abir is actively trying to set up Kunal and Mishti while nursing feelings for Mishti.
Mishti also lacks self-awareness in that she fails to recognise why she is so comfortable with Abir or prefers his company to Kunal's. I just don't buy this whole 'I have feelings for X but don't realise it' spiel TV seems to peddle.
Kaash main itni unaware hoti apne feelings ke baare mein. 😛