Sun Square Moon love Synastry ~ Emotional Difficulties
The Sun is the source of all energies. These energies stimulate the activities of the houses occupied by the transiting Sun and reinforce or weaken the planetary effects, depending on the Sun's aspect to the natal planet. When the Sun transits an inner planet, it may trigger a dormant aspect between that inner planet and a slower moving outer planet. If a planet is being transited by another planet when it is being transited by the Sun, the effect of the transit is strengthened.
Sun Square Moon
A Sun square Moon aspect creates emotional difficulties by challenging how you choose to work with your partner when perceptions and insight cause you to see different approaches to the relationship you desire. When the Sun person is square the Moon person, your romantic and domestic needs are likely to be challenged by your partner's goals.