Classically a tense aspect: same modality, clashing elements. Strong attraction and friction in equal measure. Squares build lasting strength when both partners are willing to negotiate.
Fire · Water
Fire with Water: intense chemistry that can steam or extinguish; emotional styles differ.
Fixed · Fixed
Both Fixed: unshakeable loyalty and equally unshakeable stubbornness.
You romance grandly. You want to be adored, and you adore in kind. A partner who admires you out loud and matches your loyalty will have your fierce, lifelong devotion.
You love with terrifying intensity. You want someone who will meet you in the depths, keep your secrets, and never flinch from your truth. Half-love bores you into leaving.
Method: sign-to-sign aspects per Ptolemy's Tetrabiblos; full synastry needs complete birth charts. For entertainment only.