Moon square Mars (orb 1.7°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Moon in Libra in House 5 brings personal dream, play, inner child, childhood imprint, mother figure, mother image, optimism, and inner rhythm into House 5 (creation, performance, and personal expression), with Libra style (relationship, balance, negotiation, and sense of form); Mars in Cancer in House 1 brings action, courage, competition, and effort into House 1 (presence, body, and the way experience is entered), with Cancer style (memory, protection, belonging, and family sensitivity).
Concrete friction: this aspect creates live tension between the inner child, mother image, and Mars: vulnerability, protection, or the need for safety can turn into anger, inhibition, or defense, sometimes through a weak, inhibiting, or castrating mother image. House 5 (creation, performance, and personal expression) is in friction with House 1 (presence, body, and the way experience is entered); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.