Arnav will trust her.. he loves her.. and he knows she loves him too..
So let's look at it from his point of view.
From the beginning, he knew she was different; he couldn't stop thinking about her. For a guy who claimed that no one mattered to him, that nothing mattered to him, suddenly, he could not stop thinking about her, worrying about her, her tears affected him, he wanted to see her.. and he was angry, that she had that effect on him. He didn't want to be attached to anyone, because of something in his past.. that we still don't know about.. so he tried with her, what he did on everyone else.. insult them, cause them pain, make them scared of him and drive them away.. but unfortunately, it didn't work on her.. she was strong and adamant.. she was the only one who could ever stand up to him.. and then when they tried to stay away from each other.. fate brought them together.. sometimes in teh form of Anjali, sometimes in the form of Arnav's car trunk etc.. Ok, now they fall completely in love with each other.. Arnav slowly accepts that what he felt towards Khushi is love.. and he wants to tell her that.. but then he sees her with his jijaji, someone he trusted a lot.. and the reason he never asked Khushi about it is because he was worried that what Shyam said might be true.. and he thought he wouldn't be able to handle it if that were true.. think about it, why did he marry her? If it was someone else, he would have killed her.. I don't know.. bought her with money.. but Khushi was his.. he wanted her, he didn't want to lose her.. so he married her.. but he still didn't want to ask her, because he was scared that she might actually prefer Shyam over him.. he knew he wouldn't be able to take that if she did tell him that.. Finally he started regretting his actions, when he saw her tell her mom about how perfect he was.. and then she has to try and commit suicide and he had to tell her the truth. now he realized that maybe deep down that she was right.. well, he sees the change in her behavior and the way she confessed that he mattered to her, at the airport.. so he wants to go back to her.. and boom, he gets kidnapped.. and then he saw that she came in search of him.. when no one in his family even realized that he was kidnapped! and he saw the way she hugged him.. he knows she loved him.. and the telepathic conversation.. he knows, believe me, he knows!!!
Ok, yes, that was Arnav's pov.. let me get this straight.. One, I hate guys who abuse women, having had such guys in my life (my current bf is a sweetheart, though!)!! So I hate that they have to show Arnav abusing her this way.. I mean the only reason I like Arnav is no matter how much pain he gives her, it hurts him more!
Two, no matter what crappy past he has had and no matter what trust issues he has, if Arnav doesn't trust Khushi now after she risked her life, gave up everythign that mattered to her and worse, even had to let the creep touch her face (I want to puke still.. thinking about that) .. then I'm sorry to say this, but Arnav doesn't deserve her.. she should just leave him, no matter how hot, sexy or caring he is!!!! The CVs are sensible.. the show has been very realistic so far.. even the MU has been realistic.. or so I feel.. so now it will be illogical and ridiculous if Arnav doesn't trust Khushi.. after all that she has suffered just because of him!
Ok, sorry for the ranting.. I just have to keep telling myself this every time.. that Arnav will trust Khushi.. Arnav will trust Khushi.. I think I even had dreams about this last night.. I want this to end soon, 'coz I can't take this suspense any more!!!! ðŸ˜