Raghav is an impulsive and emotional person by heart and personality. He is very very hasty when it comes to thoughts and acts... in a jiffy he acts, he reacts... in a split second, he changes his mind. His mind is capable of moving from one end to another within a second and he feels he is RIGHT whatever stance he takes.
EVIDENCE OF IMPULSIVE BEHAVIOR OF RAGHAV:
Dying to avenge the Kapoors - tried to befriend Pakhi for the same- helplessly fell for Kalpi (truly, perhaps)... ALL ARE IMPULSIVE/SPLIT SECOND DECISIONS
He married Pakhi in a jiffy without thinking of emotional consequences - SPLIT SECOND DECISION. He doesn't care what would happen to Pakhi who loves him madly.
He wanted Kalpi to accept his love as soon as he realized his love for her - WANTED IMMEDIATE REACTION
Chided and Scolded Kalpi for breaking Belgium glass-set - though he claimed to be in love with her - HASTY REACTIONS
He made Kalpi fall for him - within no time and...while he is with Kalpi, nothing in the world mattered to him... everything was Kalpi - HE CARED FOR NOTHING EXCEPT HIS EMOTIONS
Now, he saw his mother, and learnt that Kapoors are responsible and thus, he is willing to go to any extent to destroy the Kapoors, totally forgetting Kalpi and her future. IT IS RIGHT for him
Kalpi comes from a lower strata of the society, wherein no one from her community will come forward to marry her... specially when one comes to know that her LOVE marriage failed. :(