Is he the one?
A reader cannot stamp a relationship as fated. A reading can look at how it works in practice: whether you feel more yourself in it or less, what keeps repeating, and what you are afraid of if the answer is no. Compatibility charts and tarot are ways of looking, not verdicts.
Nobody can certify a soulmate. A reading can look at how the relationship actually works day to day, which is where the answer lives.
What a reader can tell you
The one, the soulmate, the twin flame: the words change and the question stays the same. Is this it, and am I safe to stop looking? A reader will not answer that with a label. They will ask how you feel after an ordinary Tuesday with him, what the fights are about, and whether the doubt is new or has always been there.
Astrology gives you synastry and the charts people compare; tarot gives you spreads for staying or going. Both are good for seeing the shape of a relationship from outside it. Neither can tell you more than you can learn by paying attention to how he treats you when nothing is at stake.
If you are asking because something feels wrong, say that in the chat. Readers are careful here: a relationship that scares you is not a fate question, and a good reader will say so and point you to help.
Ask it in your own words
Tap one and it is typed into Seraphine's chat for you. Change anything before you send.
Not sure how to put it into words? The Twin Flame or Karmic Partner quiz takes about 3 minutes, and your result opens a reader's chat with it typed in.