A jury began deliberating on Monday over the fate of Sean Combs, the music mogul facing charges of sex trafficking and racketeering conspiracy. Inside the jury room in Lower Manhattan, the 12 New Yorkers will have access to hundreds, if not thousands, of pages of evidence presented during the seven-week trial, including years worth of text messages that chronicle Mr. Combs’s relationships with the two women at the center of the case.

The prosecution has highlighted dozens of those text messages in an effort to prove that Mr. Combs used violence, financial control and threats to manipulate his girlfriends into physically taxing sex sessions with hired men, while he masturbated and filmed.

The mogul’s defense lawyers have maintained that these nights of sex — known as “freak-offs” and “hotel nights” — were fully consensual, and they spent hours throughout the trial parsing messages in which the women appeared to convey enthusiasm for the encounters.

The trove of texts that jurors have seen provided intimate glimpses into the dynamics of two tumultuous relationships, the first with Casandra Ventura, the singer known as Cassie, and the second with a woman who testified under the pseudonym “Jane.”

Both sides have had to contend with the complexities reflected in the years of communications: expressions of love and anger, lust and reluctance, excitement and anxiety.

The total collection of evidence in the case includes 28 days of witness testimony, videos of some of the drug-fueled sex sessions and the surveillance footage of Mr. Combs’s assault on Ms. Ventura in 2016. But the text messages play a crucial role in knitting together a narrative of events.