Venus square Mars (orb 0.9°) creates concrete friction between the two planets. The orb is extremely tight; this aspect is one of the chart's strongest signals.
Here, Venus in Pisces in House 11 brings desire, taste, relationship, and attraction into House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects), with Pisces style (imagination, faith, compassion, dream, and permeability); Mars in Sagittarius in House 8 brings action, courage, competition, and effort into House 8 (sexuality, shared power, crisis, and invisible bonds), with Sagittarius style (expansion, travel, belief, and the search for meaning).
Concrete friction: this aspect creates tension between attraction, pleasure, empathy, and direct action: the person may alternate between seducing, appreciating the other, attacking, desiring, or turning relationship into a power struggle. House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects) is in friction with House 8 (sexuality, shared power, crisis, and invisible bonds); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.