The Runner and Chaser Phase which runs concurrent with the Separation phase of the Twin Flame Journey isn't fun but it does and will end. You should have a strong sense of knowing that overrides any doubt. Doubt and confusion exist and are present with the counterfeittwin flame which occurs usually just prior to the soul reunion with the real twin flame.
But you're right: the signs, symptoms and syncs of a soulmate are IDENTICAL to those of twin flames.
The ONE DIFFERENCE is that the divine mission is there (the mission is the reason twin flames exist in the first place as a soul split into two halves of the same soul incarnate in two separate human bodies.)
Twin Flames are two halves of the same soul incarnate in two separate human bodies. During one previous incarnation the twins were one soul being incarnate as either a male or female. In the second incarnation the soul is the opposite of the first incarnation: either a female or a male but in this, the 3rd and final incarnation the soul is split into the two halves: one male energy and the other half female energy and are incarnated in the two separate human bodies.
Once incarnated in these 2 separate human bodies, the twins find one another during this, the 3rd and final incarnation. Thus, the twin flame journey to union ensues.
So, what's the purpose? Did God decide to split souls into halves for a good time? Was he bored? No. The incarnated twins have a great purpose: to connect as a collective and lead the masses back to truth and origin. This is called the Divine Mission.
During the Runner and Chaser Phase of the twin flame journey, part of the journey it's self is to embrace the counterfeit twin flame. There's nothing nor anyone who will be able to redirect you or convince you that this isn't your real twin. It's part of the journey, soul evolution. You have to go through the counterfeit twin flame as part of your journey.
You can, however, make your journey to twin flame union faster and easier by following your universal signs. The signs (assuming you always track them by writing them down as Moses did) then you'll be able to revisit your writing and you'll see the pattern form. That pattern is your ROAD MAP like your own personal GPS to follow to achieve twin flame union and I always recommend choosing the shorter path to union.
If I had known then what I know now, I would've chosen the fast track to union. It's just easier saving time, effort and energy.
The Fast Track to twin flame union is as easy as correctly and accurately interpreting your signs however we often don't understand their meaning.
I used to think signs meant my twin was thinking about me or that I was right in my feeling or thinking a certain way. In reality, the signs ONLY present to GUIDE YOU to the right direction. They do not confirm or deny anything. They show you which direction to go, when and what to think, do and say to achieve union the fastest way possible.
That said, the most common mistake people make is misreading the signs. The signs will chase you until you need no more guidance and you're on the right path — then they'll disappear until you require guidance again.
Twin Flames are one soul being and soulmates connect to one another. So the best thing you can do if you're in doubt is to FOLLOW YOUR SIGNS. Go get a little note pad to track them. Write down what the sign was, numbers, letters, names, dates, songs, words, what you were thinking or feeling and doing at the time you got the sign.
Then revisit your pad in about a week to 2 weeks and interpret the signs. There's some articles on my site I've made available to the public that teach how to interpret the signs. Revisit your signs and you'll notice patterns. The signs will guide you on the fast track to union with your true twin flame.
I hope this helps!