My boyfriend’s ex is being a psycho?

My boyfriend and his ex were together for 4 months and broke up 3 months ago (we’ve been dating for about a month). She follows him home from school, drives past his house with her mum, shows up at his door, messages him, she follows him around at school, tries to make him jealous (he’s not jealous), she got in a punch on with her friend about him, she gets her mum to call his mum about things, etc.

The other day she made 2 fake accounts to message me on and asks my boyfriend about me all the time. She somehow knows lots of things about me that she shouldn’t too and it’s creepy.

Should he be concerned about her behaviour and what should he do?

My boyfriend’s ex is being a psycho?
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