Here dev doesnt knkw tgat alcohol could be bad for bijoys health .. so he provoked him to take big gulps ... but that is not devs fault as bijoy is an adult...
just like ishwari cleared that sona is innocent in s1 , i am sure bijoy would do the same for dev now. He will never accuse anyone for something that was not their fault.
Coming to dev's act of hiding the trurth and attaining martyrdom... i do not support it... this is exactly what he kept doing in s1 and everyone had to feel the burn