Well, I might not sell all my belongings to make the move, but I think that if we managed to have a successful, 2-year long distance relationship already and my boyfriend proposed to me after this time, then yes, I might likely make the move. If I have nothing to leave behind job-wise and have no home to sell, there is really not much holding me back. I do not yet have an adult son, but if I were older and my children were grown up, then I would certainly move as well. If my children are out of the house already, why not move. Five to six hours is not that great of a distance to where visitation is impossible and it is likely that my children would be moved away to other parts of the state or different states as well. Thus, if the relationship seem to be a functional one and everything was in order, I would move to get married. But I would take most, if not all, my belongings with me.

Yes, I would, but I wouldn't sell the house. I would probably rent it. After all, there is nothing to pull me behind. My son was an adult and he could take care of himself. We could meet occasionally by trains, buses, or planes, not to mention we could chat with internet. As freelance writer, my work does not depend on location, so that's not an issue either.

If you have sustained this relationship long distance for this long, then it is time to move closer. I would do it. I might not sell my house, but I would rent it out. Maybe to the adult sone.
It sounds like it is time for the mother to find some happiness and if that is 6 hours away then the son can come and visit her there at her new home. I would do it.

Why do you have to sell everything to drive a u-haul 5-6 hours? Take it with you or put it into storage. But as lidyax says don't sell the house.

I did do this! My husband and I had a long distance relationship for a year and then we started talking marriage. I wanted to get engaged right then on the phone. He said no, I would have to move up to Washington and live near him for a few months so that we could find out if we really were compatible, before we would make any committment. He was not able to move as he was in the military. I did. A month after I moved we were engaged and two months after that we were married. That was on September 9 1994.

I did not own a house nor have a son, but I did have a job. It was more like 15-16 hours away, by car.