Arnav definitely loves Khushi. There is no doubt about it, and your fab pics are all the proof we need. The real question is, WHY?
Why does he love a girl who is ... enough to sabotage his business? The let-me-make-his-life-a-hell-at-home-so-that-he-escorts-me-to-Laxmi Nagar, I can take. But barging into his office and putting him to shame is too much.
the Same reason that Khushi still love him after all hurtful thing he did to her either physically or emotionally ..
She still consider him as her dream prince although he said to her that she is lier, deserve to be in pain, didn't have class, and he said many time that he hate her .. , etc
they both do each other unbearable thing just to try to annoy each other .. but it unintentionally increase their love : )