Delete Facebook, hit the gym, lawyer up?
But in all seriousness, being generous and effusive with a prospective partner is not an issue in itself. The problem is when it's used to manipulate someone into being "hooked" on you then go on to abuse that person. That's why multiple people here are saying to be wary, we're not saying to write him off outright.
Netflix killed Inside Job but made 8 seasons of Big Mouth. They deserve what they're getting.