सीता Sita, पितृकृता by his father, दारा इति as wife, रामस्य Rama's, प्रिया became beloved, गुणात् because of virtues, रूपगुणाच्चापि by virtue of beauty as well, प्रीति: affection, भूय: again, अभ्यवर्धत developed.
Chosen by his father Sita became Rama's beloved wife with her virtue and beauty his affection for her grew further.