Technically speaking, a Twin Flame is one soul that has been incarnated into two bodies, so it really is only possible to have one. And, it has other parameters other than simply offering the opportunity for the other to heal and grow. But that doesn't mean that we can't have other types of deep soul connections that transcend time with multiple people, which you clearly have had. I definitely agree that love is so much bigger than society makes us think it should be, and also that a TF relationship is a portal towards your own inner wisdom.
Thanks for sharing your journey and for the mention/link. 💚