True words.
One key realisation in my Twin flame relationship to let go was to stop conlcuding that an insane mutual energetic attraction that doesn't fade away is to be interpreted as "then we are meant to become a pair". Many people who are in passionate relationships and then separate, mostly due to jealousy and distrust, fall into exactly this spiral; they part ways but actually both still feel strongly attracted to their former partner; when at the beginning they attempt to suppress these still existent feelings for another then often times they more and more end up wondering:"why do I still have feelings for him/her?" Finally, they conclude "because we are meant to be together". Those types of relationships indeed often are a never-ending on-off circle.
So for me, it was really imperative to acknowledge that the energetic attraction toward one another is simply there and it cannot be severed, BUT as said, this is not to be taken as an indication that we are therefore meant to become a pair or that this is the pathway I want to go down in the first place. Only by truly understanding this it is that the extremely seductive energy can be handled properly.