If I were the one about to be engaged and I heard this- I would run for my life. I don’t want to be married to a guy who is wishing he was with someone else. If I were the other “wanted dream” girl, I would also run as fast as I can- what if someone else takes the “dream spot”? How could you trust someone like that? How could you marry a guy (or gal) like that?
That guy needs to leave shidduchim for a while and take a deep look at himself. he needs to do a cheshbon hanefesh and see- why am i getting married? He also needs to consult with his Rav… he is too immature to be getting married.