From Mr. to Hubby 18+

Frederica Austin was a small-time actress who was trying to make it big. By day she acted in small films and by night she met up with Yates Castillo for their rendezvouses. But if it was left up to her, she would opt out of her nightly sessions entirely with Yates. 
 
Every time she met up with him, he left her with scrapes and enough bruises to make the film studio executives suspicious. The more she objected, the more he punished her. Though she constantly wished he would be gentler toward her, she was left with no other choice but to continue meeting up with him.
 
But the more she got to know Yates, he didn’t seem so bad. She calls him ‘Mr. Castillo’ but before she knew it, all of sudden others are calling her ‘Mrs. Castillo.’ When and how did this happen?