Modern dating is weird!

After one date with this guy, he became overwhelmingly affectionate, idealistic, and was expecting me to be all over him. I felt like he was projecting a fantasy onto me. Fast forward to today, I cut things off because it became too much. He texted me from a different number just to curse me out and expose himself? I have to laugh. People this unstable just should not date, this is so unhealthy.