Can you file a police report on someone who is just talking crazy?

My daughter has been dating this guy off and on for 5 years. About a year ago she found out she was pregnant. Well, since then he’s gone off the deep end. Like today, he came to pick the baby up, and he started an argument with her. She kept telling him to leave and he wouldn’t. He’s never “hit her” but he’s “restrained” her from leaving a room,or pushed her back down when she tried to get up.
Today he kept saying things like, “I haven’t put my hands on you! I haven’t touched you! I’m not going to jail today!”
My daughter is saying “WHAT are you talking about???”
Well, they were in the parking lot of her apartment complex, and he was saying “Everyone here can see what’s going on! They can testify that I haven’t touched you!”
It was insane, and she kept asking him to leave. Finally he did (without the baby.)
He drives her absolutely nuts. One day he’ll be just fine, the next it’s like a whole different personality takes over and he starts fights, withholds money, doesn’t show up when he’s supposed to and just comes up with the most off the wall things.
When she was pregnant he said, “How do you think it makes me feel that people are asking me if the baby is even mine?”
Well, anyone who knows my daughter knows the baby wouldn’t be anyone elses….including HIM. But he just says shit like that to hurt her.
I keep suggesting she at least call the police to get a record of the things he says, but she says they won’t do anything.
I said, “But at least you’ll have a RECORD of the things he’s done in case something DOES happen.”
I don’t know what to tell her. My daughter doesn’t drink, doesn’t do drugs, but she just keeps letting the jerk back into her life, then calls me up crying because he’s hurt her again.
Today I’m afraid I yelled at her “Why are you acting so surprised? Why are you acting like you didn’t EXPECT this? He’s NOT going to change!”
She hung up on me.
I don’t know WTF to do.

Also, I think she would be OK just getting rid of him, but he keeps her hanging on by giving her money (for the baby) (But then demanding to know how she spent it.) She needs money badly, but she’s having a very hard time finding a reliable babysitter.

He’s promised to buy her a new vehicle in November, which he may, or may not do. He keeps her hanging on with shit like this.

Sorry for the rant….but would talking to the police do any good?