I think a lot of fans have not been able to digest Ragini and Lakshya because all her means to get to him were wrong. And they will never show a happy ending for the two - it's damn illogical.
One thing I feel is that a reformation track will never be possible if she remains with Lakshya - he just isn't the type of guy to bring about change in a person.
He's too impulsive (breaking his and Ragini's courtship, telling Maheshwari about Swara being illegitimate, walking out, accepting Ragini as his fiance and now marrying her) to calm down and wonder about the consequences of his actions.
However, when it came to Swara, he knew what he needed in a life partner and he saw that in Swara, he thought about his feelings, asked for a second opinion from Swara herself (lol), decided that his family and their reputation was more important when Swara was not approved (because Swara would never accept such a Lakshya) and had his rishta fixed with her without any impulsive action.
Notice how Ragini brings out the worst and Swara brings out best in him?
So how will Ragini ever change his feelings or change herself with him?
Other than these emotional mind and heart answers, think practically; what happens now that Swara has made up her mind that she won't let Ragini have her way? And Sanskaar is with her? Has she ever failed? What happens when Dida wakes up? What happens when Lakshya will find out about Ragini? Forget Lakshya, who will accept her in Maheshwari Mansion?
Just hope the creatives think about all this rather than let Ragini have the life she is dreaming about. Because she doesn't deserve it.