Sun square Moon (orb 1.8°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Sun in Pisces in House 8 brings identity, ego, father figure, visibility, and direction into House 8 (sexuality, shared power, crisis, and invisible bonds), with Pisces style (imagination, faith, compassion, dream, and permeability); Moon in Gemini in House 11 brings personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm into House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects), with Gemini style (curiosity, language, movement, and mental adaptation).
Concrete friction: this aspect creates tension between conscious direction, the inner child, and the personal dream. House 8 (sexuality, shared power, crisis, and invisible bonds) is in friction with House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.