why do people not walk when i hold the door for them?

today i was walking to class when this boy that i used to be really close was walking the opposite way (i was a bitch and ghosted him, but he was in a relationship so i thought i would get in the way)
i opened the door and held it to allow my two friend to walk through, and then i thought it would be rude for me to walk through and open the door again so i just held it open for him to walk through.

i waited for a few seconds and he just stayed still, waiting for me to go through.

is this chivalry? does he feel superior (doesn't want to be helped by a girl)? is he feeling awkward that i ghosted him? (i don't think he really has hard feelings since i told him that i would be discontinuing our friendship because his gf at the time has previously been annoyed and angry that i was his friend).

also this same day he threw a chair across the room not that it adds anything.