can't see status dp or last seen

Hii last night i talk to my bf on WhatsApp and he yesterday install his whatsapp after 15days.. when j am talking m unable to see his profile picture but i can see his status or last seen but after that i m unable to see his status dp and last seen.. while on my sister's phn i cam be able to see all this things.. so i just want to is there is techinical issue or he deleted my no. Or he blocked me please reply me