So why do some guys get in womens personal space?

There’s a guy I work with, who seems to think nothing of getting into women’s personal space.

The other day I noticed him get right up close to one of my female colleagues when he was talking to her. For a minute I thought there was something going on between them, but then I remembered she’s in a very stable happy relationship.

But twice since then he’s done the same thing to me. We were working side-by-side and he was about an inch from me and earlier today passed so close to me I had to move slightly so that he didn’t brush me with his arm. There was plenty of space around us, so there was no need for him to do that. He doesn’t come across as creepy and I don’t think fancies me as he’s done it to other women too, but why would someone do this?

So why do some guys get in womens personal space?
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