Mercury square Lilith (orb 2.7°) creates concrete friction between the two planets. The orb is tight enough to count in the main reading.
Here, Mercury in Virgo in House 10 brings intellect, language, thought, and technique into House 10 (vocation, status, responsibility, and public image), with Virgo style (precision, method, usefulness, and attention to detail); Lilith in Gemini in House 7 brings pure ideal, absolute demand, fascination, and refusal of compromise into House 7 (relationship, confrontation, and the mirror of others), with Gemini style (curiosity, language, movement, and mental adaptation).
Concrete friction: this aspect creates tension between thought, speech, obsession, purity demand, and refusal to let go. Visible angle: Mercury near the Midheaven (orb 3.3°) touches an angle; this aspect is easier to notice through social role, reputation, career, and public image. House 10 (vocation, status, responsibility, and public image) is in friction with House 7 (relationship, confrontation, and the mirror of others); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.