Would a male coworker invite a girl to the movies alone if he's not interested?

I just started there and first a couple of weeks ago him and the their new hire girl we're going to go to the gym and a restaurant after and they were going to be alone, but then he randomly invited me to the restaurant after and I could tell she wasn't aware when he mentioned it. She then bailed and he invited his friends who are also our coworkers but they're a couple, and at restaurant he paid for my food.

Then he invited me to go see a movie that he had already seen but he wanted me to see it so we went alone.

Last thing he likes my first trap on tiktok but I could tell he had already viewed it before like a few days before without liking it, and then he went back to my profile and liked it after we went to the movie.

Updates
6 mo
The other new hire girl* two of us started at the same time
Would a male coworker invite a girl to the movies alone if he's not interested?
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