If you haven't gotten permission from them and they ghost you, I personally think the respectful thing to do would be to not post the pictures you took of them. Thats pretty weird.
If the ghosting is a recurring problem maybe ask them before the date ends "Hey i love these pictures of you, do you mind if i post them on my instagram/use them in my portfolio?"
Likewise I wouldn't use pictures they took of you for your portfolio, as you aren't really the photographer in that case. (Unless you chose the settings/composition/posing and are using them as a shutter release, but thats not what it sounded like)
If you haven't gotten permission from them and they ghost you, I personally think the respectful thing to do would be to not post the pictures you took of them. Thats pretty weird.
If the ghosting is a recurring problem maybe ask them before the date ends "Hey i love these pictures of you, do you mind if i post them on my instagram/use them in my portfolio?"
Likewise I wouldn't use pictures they took of you for your portfolio, as you aren't really the photographer in that case. (Unless you chose the settings/composition/posing and are using them as a shutter release, but thats not what it sounded like)