It was said Aegon married Visenya out of duty and Rhaenys for love. That he left Visenya alone to oversee his Aegon fort while having night after night of pleasure with Rhaenys...and it was true. Aegon and Visenya were wed for custom and tradition, and it mattered not to Visenya. For one, she knew Rhaenys did not love Aegon half as much as he lusted after her. But more importantly, Visenya didn't need Aegon...not when she had you.