Not seen your previous threads, and began to skim this one (sorry) but I got the gist.
The guy you are interested in has to make his own choice. Since you have already made up your mind what your preference is, you have no more influence and can only hope things work out as you prefer. But family is strong so there is no guarantee it will.
Wait & see. If it doesn't go as you hope, it isn't the end of the world. Life has both ups & downs; and the wise learn & improve theirself from experience of both extremes.