Dreams are the manifestations of our desires and aspirations of our sub conscious mind. They will be depicting in myriad of ways sometimes related sometime not, sometimes relevant sometimes in bizarre patterns. It is difficult to make one to one correspondence between our real life problems and challenges and the dream sequences we go through. That is one reason why the expert psychologists can also not decipher the dreams correctly. Though some people claim that dreams can be interpreted but that is only to a first order approximation and sometimes nothing more than conjecturing. It is also seen that different people interpret dreams in different ways.
Surprisingly, in hindu mythology, the dreams are interpreted in many peculiar ways and many times its interpretation for the real life was totally opposite of what we have seen in the dreams. I remember my grandma telling me, if I saw yummy eatable things in my dreams, that I may soon fall ill. So interpreting dream is a statistical prediction and can not be accurate more than the other statistical predictions whose success range hover in the 40-60% band only.
In your case, your love and emotions have come up in your dream to that extent that you have seen marrying with the person under the blessings of Lord Perumal. There is nothing wrong in it and it only shows your deep rooted commitment and devotion for this relationship. So people will interpret this dream as the want of the person for each other but one can use it positively to turn that relationship in reality if there are no opposing or negative factors associated with it. As we do not know the circumstances of this relationship and the readiness of the parents and society for accepting it, we can not make any further suggestion in this regard. Taking the clue from the dream sequence you have to take a conscious decision in the matter. Use it constructively and positively in your life. Be your own interpreter. You know your circumstances better than any one else.
Knowledge is power.