Jen A critical period has turned out to be 5 to 7 years. During this period, in most relationships the little things have accumulated into a problem. Even if things go very well in the first years, it can then come to a break if it is not actively dealt with by both.
I want to show how important it is to get to know each other over a longer period of time. It may seem like a trial and error. I think it is time well spent compared to a lifelong relationship.
This doesn't mean you need to have Sex with him during this time. If He is the right one He will wait.