Rejection can be a dodgy one.

As an example of nonsense like this happening, resulting in nothing but being nonetheless terrifying; I had a guy follow me home on the bus when I was in my early teens, but instead of folks thinking he was being overzealous in how he was approaching me, they thought it was just a kid being cute and trying to woo a girl. It wasn't cute. Initially the whole thing was friendly, since I was carrying a sizeable set of bookshelves home and he was offering to help, but the more he spoke the more I wanted him to leave me alone. So then, once he'd decided he wouldn't take 'no' for an answer, he got off at my stop and followed me almost to my house, asking for my number the whole way. All I could think about was 'what will happen if he finds out where I live?'. In the end, I turned off into another street where a family friend lives in case I needed to call on him, but luckily he gave up after a bit.

We so often hear about similar situations that turn out differently, this is why as fellow human beings we need to believe people when they report incidents like this, in case they lead to something worse. Of course, there are always going to be cases of false accusations, but they largely come out in the wash. Nobody deserves to be humiliated by somebody out of jealousy or spite, but then nobody deserves to be followed either. Context is always important.

In my opinion, going by what's been said, he sounds like a total creep and I'd rather you be overly cautious about nothing than him try something because his ego was quashed.