we know this through her thoughts in the last few episodes
she's no longer confused
and says it a couple of times- if what she is feeling is what the whole world talks about
and yesterday when she realizes what her mum said
about a girl's home being the place where the one she loves lives
we know that Arohi understands that she's in love
now we have to wait for Arjun to be fully clear of his feelings
he hasn't fully thought about being in love with Arohi
perhaps because he was worried about saving his dad as well as Arohi
hope we get to see him thinking about his feelings for Arohi
come on Arjun...find out that you're in love
do you think Arjun knows he is in love