It's always a game of Chess with the Communists Romulans Modernists.
Feints, overtures, deceptions, maneuvers. Steps forward, steps back.
When Rome -- or the SSPX -- has had a true conversion (back to "God First") you'll know it, because their love of the truth, virtue, and contrition for their sins/errors will bear fruits of humility, such that they will WANT to embrace those who were their greatest friends -- Traditional Catholics, the Resistance. They will freely offer apologies and embrace them, welcoming them back.
Until then, it's all a game of deception. Don't fall for it.