Often couples are optomistic that when they remarry life will smooth out and settle down quickly. If your hope is that once the wedding vows are spoken your life will return to a "normal state" (whatever that normal state may be), you might be disappinted.
Because stepfamilies are such complicated families, it takes time for people to get to know each other and have the opportunity to create positive relationships. Research tells us that to develop some family history it takes at least four years. All things worth having is worth waiting for ..... and so it is with the stepfamily.