he has done every possible thing to torture preeta except being physically unfaithful to her. now they have to show it after preeta's entry in luthra house so i think makers would reveal it later that he did it out of guilt not revenge. so that his fans can find a reason to justify him.
They will find a reason regardless. Once shipping a couple fictional or otherwise especially if one has like a fan account online is largely about being loyal. Plus the confirmation bias doesn't necessarily help either. Communicating and constantly seeing a one dimensional perspective because most of them have either blocked or muted anyone who has a different view from them makes them largely delusional and also in denial. The fact that they don't have to or plainly don't want to reason out their feelings makes them incredibly insecure. It is prevalent in all sort of fandoms, no matter if it is online or even offline. Herd mentality eventually takes over.