if shiv loves ipshita then why does he behave in this manner? answer as follows
shiv and ipshita had an affairš” before gauri entered there life so the kapoor family is a firm believer of astrology so they matched the kundali and shivs dosh was revealed. When shiv said he did not believe in it and he does not trust the guru and asked ipshita to marry him anyway and ignore the kundali she refused. She told him that she loves him but she wont ignore the kundali.š” when gauri entered their life they decided to make her the bali ka bakra and considering shiv he did not want to marry her because he wanted to be faithful to ipshita. But her deeds and behaviour mad him carzy and he stopped talking and behaving like a lover or say a boyfriend with her because she was not ready to marry him because she was scared.
now when gauri fell in love with him she is ready to die for him and sacrifice everything for him šnow that made him realize what true love is and he started falling for gauri thats why he always keeps saying that after meeting gauri i understood the true meaning of life. When he compares both of them his heart always selects gauri. And even after gauri dies i am sure he wont go back to ipshita (hope gauri or shiv dont die)
hope its not cofusing and long post just my point of view
what do you think