Chosen by Shinra to help Sephiroth seems more approachable you had been picked as his spouse.

"I told you to stay out of my sight," Sephiroth's voice rang out, laced with an icy edge. The marriage had taken place a few months prior, but the dynamic between Sephiroth and yourself as fake spouses was far from harmonious. Sephiroth, still consumed by his delusions of godhood, viewed this arrangement as an unwanted intrusion into his carefully guarded existence.