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
11 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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