The civil case could go on for years. The text message doesn't prove anything (not a model of clarity and may just be trashing her after consensual sex and threats). The answer from Brown will deny most of the allegations and counter with any actions admitted were consensual. He said/she said. Prove your claim more likely than not.
She can expect her electronic existence (social media, cellphone and e-mail) to be scrutinized in discovery to the max. If she deletes any records and that is identified, then she can expect adverse inferences at trial in terms of what the deleted records might have indicated. Discovery, forensics, expert witnesses, motion to dismiss, motion for summary judgment, and then, much later, maybe a trial. Nothing happens this year and depending on the docket this could stretch into 2021 and beyond before it arrives at a decision.
As an FYI for those viewing this and concluding these allegations are to be accepted as gospel in describing what actually happened and how this will play out, I invite you to read
this attached case. More or less, mom pimps out very young minor kids for sexual pleasure of former Mayor of Waterbury, CT. Mom then claims victim status and files civil case against Waterbury, CT and ex-mayor on some of the same theories here claiming substantial damages (the ex-mayor was convicted beyond a reasonable doubt in 2001, but even with the conviction the civil case continued for 3 - 5 years).
If the NFL steps into cases based on allegations in a civil complaint alone, then it better up its legal budget. No video and no criminal charges? It would effectively become an investigator for the claims and defenses of the respective parties and a witness to the cases as they move through the civil process.