Well in the last episode Shivina clearly mentions to Priya that she is being forced to marry Vedika's brother in law (sorry I don't remember his name) which was quite irksome as the opposite is the truth as if Ram gets to know that Shivina does not want to get married here and she loves Akshay then he would himself stop this wedding but seeing Shivina it did not seem like she is a negative character at least yet. I think she really believed when she said to Priya that Ram is forcing her marry and I think the main reason is Nandini.
Looking at yesterday's episode, the way Nandini shuts down Shivina's protest to not get married its pretty indicative that she wants her daughter to be married in that house maybe becoz they are rich so even though its not shown to us the circumstances in which she has agreed to marry inspite of loving Akshay, but Nandini has definitely reinforced in her that Ram wants this marriage to take place either for business reasons or for his promise to Vedika (which is partially true as he did promise Vedika in the beginning of the 1st episode which I assume is this only but yet to see if there are any other promises as well) but actually it is Nandini who seems to want the marriage most but not sure why becoz I am sure if its about money then Shivina can get many proposals from richer families or maybe she know about Akshay.
So I think when she said this to Priya it was not due to any ulterior motive or to malign Ram but she actually believes this.