Rebbe Dovid-
As you are growing up, I hope that you will endevour to learn the importance of maintaining healthy relationships through dialogue and mutual understanding. Before embarking on the journey of building a house, it may be advisable to become somewhat competent in the perek of interpersonal relationships and conflict management. There are numerous good books written about these subjects which you may find you can put to good use.
Marriage is often about vatranut and very often about maturity. If you find it difficult to understand and deal with the fact that the girl you are dating differs in opinion on the subject of choice of family rav, and respect her need for you not to tell the latter about her opinion of him, thereby saving her face; or even to discuss this intelligibly and sensitively with the girl; one may advise that you learn more on the subject of marriage before trying it– indeed, perhaps it would be recommended that you find a new marriage coach.
Best of luck
shteig