Hey guys i think i know why abhi doing this
1st : when Veer was talking about Shika Abhi was saying to himself kaash main ap ko sachai bata pata yeh sachai surf mein aur ama jante maine kise se wada kiya hai ke apni aur shika ke sachai kabhi bhi apne zubaa pe nahi lawoga and in today epi shika was saying to abhi main to tume kabhi mile bhi nahi thi maine tumhara chehra bhi nahi dehka tha leken tuhare pyar se mujhe pyar hogaya and when shika was talking about those letters did u guys notice abhi's expression plus sam said this is not abhi hand writing
i think abhi had a friend who was in love with shika and shika never saw him and he might died and abhi promised him he will take care of shika
dont u guys think so?