Did this person delete me from Whatsapp?

Hello everyone.

Recently i uninstalled Whatsapp on my old cellular phone(Note 4) and bought a new one (Note 6.)

I still kept my old number. However i wanted to give myself a break from Whatsapp and was away for like a month.

When i installed it onto my new Note6, i noticed i could still see all my regular contacts photos except one. This girl i regularly talk to. I could not see her pic at all but could still see her profile. We spoke for a few hours and wondered why i couldnt see her Profile pic yet i could see it on other phones!

So my theory is this. She has her profile pic set up for only HER CONTACTS TO SEE. And being as i couldnt see her pic, was it possible she deleted me from her address book?

*i have to add, the next day i asked her about it, as why i couldnt see her pic, and she claimed that maybe it was my problem. However, while i was typing her a message, her profile pic magically appeared out of nowhere. Which leads me to believe she clicked the "Add" button up top of the message chat.

Am i correct in all of this? Or are there other possibilities?