Well we all know what will happen between PriRa after marriage as they will fall in love with each other eventually but even now when Ram has claimed he will marry Priya for Shivina however will never love her but will always fulfill all the responsibility as a husband.
I think for Priya to heal from her past experiences regarding men, she needs exactly this- to be treated with utmost respect and care which she has never seen with her father or her ex which ram will easily give to her as he is purely made for giving everything in any relationship and taking responsibility of every family so that there is no neglect towards anyone.
Ram may not love her but she will have the respect of being Ram's wife which he will definitely ensure that she will get that. She won't be alone in her struggles and I am sure Ram will also face her father when he gets to know about their dynamic (that too even before he falls in love with her)
I think Priya will not be disappointed with Ram as her husband and his initial behavior towards her will be extremely important to change her issues regarding men and love in general. And she will eventually start trusting Ram.