I think that it depends on how fast the Twin Flame couple wants to move the obstacles so that they can be together. Also, if both Twin Flames are willing to confront the situation then it is easier to get to the reunion.
Some of the obstacles that Twin Flames face are physical which cant be easily fixed like resolving marriages or if they both live on separate continents.
Some roadblocks are the Twin Flames themselves if they need some time to be apart because they need to face their separate emotional pain and past karma.
I have had to move so many obstacles in my life and separation has given me enough time to heal my core wounding.
Divine timing is also at play in the lives of Twin Flames. I visited my Twin Flame’s hometown a few months ago but he was out of town. I have been applying to further my education and it turns out that my Twin Flame just started a new business investment in the area where I chose to go.
You don’t have to see or constantly communicate with your Twin Flame to work towards a Union. If you trust your process, everything will eventually turn out as you desire.
Be Positive and Believe in your Twin Flame experience.