OK I don't understand where all of this has cropped up from, but Ranvir definitely truly loved Ragini and did not love her out of sympathy. The extent he had to fight for her with his mom and her family just to get married is proof of his love. He wouldn't go through all of that just because he sympathized with Ragini. He worked so hard to get Vinu out of jail only for Ragini's happiness. He tried every possible way to make his mom understand, went crazy just thinking about Ragini's engagement.
However I do agree that post-marriage Ragvir went totally down the drain because of the tracks on them, or lack of thereof. I always felt like the writers gave Ragvir a beautiful love story and beautiful beginning of marriage (until March 2008) but after that they were at a loss of what to show on them. So decided love is shown, next should be fights/misunderstandings--in the process ruining both Ragini and Ranvir's characters + marriage. Cringeworthy dialogues and scenes followed. Post-marriage, Ragvir were disappointing. It seemed as if the makers thought that a few romantic sceens here and there is all we wanted to see. But all of this does not mean that Ranvir stopped loving Ragini post-marriage. I believe he loved her till he breathed his last. His very last action of asking Anmol to marry Ragini (even though I COMPLETELY disagree with what Ranvir did) can be a proof of his love towards Ragini--he wanted to make sure somebdy would always be there for her...
I don't understand why Ragini's love for Ranvir is being questioned also? I think rift track is proof enough of her love. And just because she has remarried doesn't mean she doesn't love Ranvir. Life goes on, you can't expect her to mourn Ranvir all her life. She definitely doesn't love Anmol right now, and in the future when she will, it won't mean that her love for Ranvir was fake. We all love so many people in this world, but we don't love each person in the same way--they all hold a special and separate place in our hearts. Similarly, Anmol will hold his own place in her heart and she will love him very differently than she did Ranvir. Love is immeasurable too, so we can't say she loved Ranvir more or she loves Anmol more. She will love Anmol and Ranvir in very different ways. And I'm sure Ragini will never stop loving Ranvir but Ranvir is her past and Anmol is her present. She can't live in the past, like Alekh, because she has to take care of everyone, especially Tammy, Khushi, and Alekh.